Nkawm Khau Kev Nyab Xeeb (84 Duab): Khau Ua Haujlwm Nyab Xeeb, Yuav Tsum Muaj Khau Tshwj Xeeb Rau Kev Ua Haujlwm Thiab Lawv Cov Cim, Qauv Nrog Lub Hau Ntiv Taw Ntiv Taw

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2023-12-16 05:41

Nws tsis tuaj yeem kaw koj tus kheej rau kev tiv thaiv tsuas yog lub cev thiab lub taub hau hauv cov xwm txheej tsim khoom tiag. Nco ntsoov tiv thaiv koj ob txhais ceg. Tias yog vim li cas, rau ntau tus kws tshaj lij, kev paub txog hom khau kev nyab xeeb thiab cov yam ntxwv ntawm lawv xaiv yog qhov tseem ceeb heev.

Cov cai thiab cov tseev kom muaj

Zuag qhia tag nrho thiab PPE, lwm yam kev tiv thaiv ntawm cov neeg ua haujlwm hauv tuam txhab yuav tsum tau them los ntawm cov tuam txhab lawv tus kheej. Thaum kawg, nws yog cov tuam txhab uas txaus siab rau lawv cov neeg ua haujlwm nyob ua haujlwm ntev dua thiab ua kom ntseeg tau tias ua tiav ntawm cov haujlwm uas tau ua. Yog vim li cas nws yog qhov yuav tsum tau ua los ntawm cov txheej txheem ua haujlwm thaum xaiv cov khau tshwj xeeb ntawm txhua hom thiab lub hom phiaj.

Nws yog, tau kawg, ua tib zoo ntsuas . Tab sis nws tsis yog qhov ntawd xwb.

Txhua qhov kev ua haujlwm thev naus laus zis hauv kev tsim cov khau tshwj xeeb nws muaj nws tus kheej cais GOST.

Cov qauv tshwj xeeb kuj tau qhia rau kev thauj mus los, khaws cia hauv cov chaw khaws khoom, lees txais thiab cim.

Txheem:

• tuab ntawm qhov saum toj thiab hauv qab;
• adhesion zog ntawm pob taws;
• lub zog tensile;
• lub zog ntawm nqaws ntawm cov khoom ua haujlwm;
• ntsuas kev nyiam huv;
• qhov hnyav ntawm qhov chaw ntim khoom;
• kev pab lub neej ntawm khau ua haujlwm;
• silhouette;
• qhov kub ntawm daim tawv nqaij ntawm ko taw;
• cov yam ntxwv sab hauv tiav;
• sab nraud tsos.

Txhawm rau ua raws cov qauv kev tiv thaiv kev ua haujlwm, khau cov khoom tiv thaiv tus kheej tau muab cais raws li kev tiv thaiv rau:

• puas;

• nrig lub zog;
• kev cuam tshuam kev co;
• plam;
• kub heev;
• hluav taws xob hluav taws xob;
• qhib hluav taws;
• txim taws;
• tee thiab txaws ntawm cov hlau molten;
• kub tsawg;
• tiv tauj nrog hluav taws xob tam sim no;
• electromagnetic teb;
• cov tshuaj lom thiab ib puag ncig.

Saib

Cov khau tshwj xeeb, txawm li cas los xij, tsis yog ib txwm tsim los siv rau tshwj xeeb yog teeb meem thiab txaus ntshai. Txawm tias thaum ua haujlwm hauv chaw ua haujlwm ib txwm muaj teeb meem tshwj xeeb tshwm sim, uas yuav tsum tiv thaiv ob txhais ceg.

Nrog kev pab ntawm khau thiab khau khiab, qhov teeb meem no tau daws:

• hauv cov chaw ua haujlwm;
• hauv cafes thiab tsev noj mov;
• hauv chav ua noj;
• ntawm cov chaw tsim khoom lag luam textile thiab lwm qhov chaw lag luam teeb.

Hauv kev lag luam khoom noj khoom haus, qee zaum koj yuav tsum siv sijhawm ntau teev ntawm koj txhais taw . Yog li, cov yam ntxwv ntawm orthopedic thiab qhov ua tau zoo ntawm kev tso pa tawm thiab ya raws yog qhov tseem ceeb. Nws yog ib qho tseem ceeb ib yam kom tswj hwm qhov zoo ntawm cov neeg ua haujlwm, vim tias lawv yuav raug txiav txim rau lub tuam txhab tag nrho. Ntau qhov kev xaiv rau khau rau chav ua noj thiab cov khoom zoo sib xws yog ua los ntawm cov tawv zoo lossis yuft.

Yog tias lub hom phiaj ntawm khau yog siv rau kev huv, lub hom phiaj tu cev, hauv kev kho mob thiab kho tsiaj, hauv chav da dej, feem ntau nws yuav ua los ntawm ntau hom roj hmab.

Tawv khau kev nyab xeeb muaj qhov dav tshaj plaws . Tab sis nws yog ib qho tseem ceeb kom nkag siab tias nws kuj muaj tus lej txwv rau nws siv. Tsuas yog ob peb daim tawv tau xaws tag nrho ib zaug. Feem ntau, tawv tau muab tso rau saum, thiab hauv qab yog ua los ntawm roj hmab thiab lwm yam khoom siv. Cov khau tiv thaiv kev nyab xeeb tag nrho-tawv yog qhov xav tau tshwj xeeb tshaj yog cov khoom tawg tuaj tas li.

Lub caij ntuj sov

Cov cuab yeej siv no cuam tshuam nrog kev siv cov hlau lossis cov ntiv taw hluavtaws. Cov khoom siv sib xyaw feem ntau siv. Txij li kev ua haujlwm ntawm huab cua huab cua siab tau pom, kev tso cua sov thiab tso cua tawm me me yog qhov tseem ceeb heev.

Cov khau qhib lossis ib nrab qhib feem ntau yog siv rau lub caij ntuj sov ua haujlwm. Tab sis txhua yam zoo ib yam, tus tsim qauv tau sim ua kom tiv thaiv ob txhais ceg los ntawm kev siv tshuab ua haujlwm ntawm ntau yam.

Txawm tias tshuab nrawm yuav tsum tau ua kom tiav.

Cov khoom tiv thaiv thiab tiv taus kom noo noo nkag mus tseem muaj feem cuam tshuam. Qhov sib txawv ntawm hom tshwj xeeb ntawm kev nyab xeeb lub caij ntuj sov khau kuj tseem cuam tshuam nrog nws qhov loj me. Tam sim no muaj ntau qhov ntau thiab tsawg, tshwj xeeb tshaj yog rau cov txiv neej. Rau cov poj niam yog npaj:

• khau;
• khau khiab;
• khau looj plab hlaub

Lub caij ntuj no

Hauv ntu no, kev tiv thaiv txias thiab lub peev xwm muaj cov dej noo twb tau nyob ntawm qhov xub thawj lawm. Tab sis cov xwm txheej hauv lub caij ntuj no tseem tsim lwm yam kev xav tau, ua ntej tshaj plaws, kev ruaj ntseg ntawm qhov chaw nplua thiab nkag tau yooj yim ntawm cov daus xoob. Rau qhov huab cua me me, nws qee zaum txwv rau khau ntaub lossis khau pob taws. Txawm li cas los xij, rau qhov hnyav heev, koj twb xav tau:

• muaj khau;
• insulated khau looj plab hlaub (nrog plaub los yog nrog tuab tuab);
• khau ntaub siab heev;
• ntau txheej roj hmab khau, ua ke nrog lwm cov ntaub ntawv thiab nrog kev nce qib ntawm kev tiv thaiv kev txias heev.

Cov ntaub ntawv (kho kom raug)

Cov txheej sab nrauv ntawm cov khau tshwj xeeb feem ntau yog tawv lossis ua los ntawm tawv tawv. Hauv qhov no, tej zaum yuav muaj plaub sab hauv, qee yam khoom siv hluavtaws lossis ntuj tsim. Hauv txoj kev xav, kev siv daim tawv tsis tu ncua qhov twg los xij yuav ua kom cov khau zoo dua qub . Tab sis vim nyiaj txiag, tsis muaj leej twg yuav ua li ntawd. Yog li ntawd, cov ntaub ntaub feem ntau siv.

PPE raws li yuft (ua ke tawv tanned) tau nthuav dav. Cov khoom siv no muaj zog thiab muaj kev nyab xeeb kiag li ntawm ib puag ncig . Txawm li cas los xij, nws tsis tuaj yeem txiav txim siab tshwj xeeb txog kev zoo nkauj. Yog li ntawd, yuft feem ntau yog siv rau khau tsim rau kev txhoj puab heev ib puag ncig. Thiab qee qhov tsawg dua nws xav tau rau kev ua haujlwm sab nraum zoov.

Cov tawv nqaij Chrome yog qhov ntxim nyiam dua hauv qhov tsos, thiab hais txog cov yam ntxwv yooj yim nws tsis phem . Tsuas muaj ib qho rho tawm - cov khoom siv no tseem ceeb dua li tawv. Vim yog qhov txaus nyiam ntawm tus nqi, kev sib cais tau dhau los ua ntau thiab ntau dua. Nws tuaj yeem siv tau (nyob ntawm ntau yam tshwj xeeb) rau ob sab hauv thiab sab hauv. Yog tias tus nqi qis tshaj tuaj yeem yog qhov tseem ceeb, tawv tawv tau siv, tab sis nws cov khoom tiv thaiv yog qhov tsawg.

Feem ntau tsuas yog ua los ntawm:

• nitrile;
• polyurethane;
• thermoplastic elastomer;
• PVC.

Rau kev ua haujlwm nyob rau lub caij ntuj no, qhov kev daws teeb meem zoo tshaj plaws yog cov plaub tsiaj plaub . Tab sis nws txoj kev siv dav tau cuam tshuam los ntawm tus nqi siab. Yog li ntawd, cov khoom lag luam nrog cov plaub plaub dag lossis txawm tias muaj cov rwb thaiv tsev sib xyaw ua kom dav dua. Txij li cov teeb meem thev naus laus zis tau raug daws feem ntau, kev siv cov ntaub ntawv no tsis ua rau muaj kev phom sij tshwj xeeb. Thiab lawv qhov kev tsis lees paub muaj ntau yam ua rau lub zog ntawm tus cwj pwm.

Hauv cov chaw uas muaj cov av noo siab, nws zoo rau siv cov roj hmab PPE. Tab sis koj yuav tsum nkag siab tias cov txheej txheem xaiv rau cov khau zoo li no ua rau muaj huab cua tsis zoo rau ko taw.

Nws yog qhov tsim nyog los muab kev nyiam rau qhov kev hloov pauv tshiab thiab muaj feem cuam tshuam ntau dua.

Qhov sib txawv ntawm kev xaiv khau kuj tseem tuaj yeem cuam tshuam nrog txoj hauv kev uas ib leeg txuas rau sab saud. Cov txheej txheem kua nplaum tau ua tsaug rau nws qhov tshwj xeeb muaj zog thiab ruaj khov, txawm tias nyob hauv cov xwm txheej tsis zoo.

Lub sab hauv yog txuas nrog lub welt ntawm lub tshuab xaws tshwj xeeb . Cov txheej sab nrauv yog lo nrog cov kua nplaum tshwj xeeb. Txhawm rau ua kom cov kev sib txuas muaj zog dua, siv cov nylon txuas ntxiv, uas yuav luag tsis tawg. Cov txheej txheem kua nplaum-cuam tshuam nrog ua ntej gluing ib leeg rau ntawm ntug ntawm qhov ua haujlwm. Tom qab ntawd, cov khau mus rau lub tshuab xaws khaub ncaws hauv chav kawm siab, qhov chaw uas cov ntoo cog tau xaws nrog cov xov lavsan.

Cov txheej txheem kua nplaum rau kev tsim cov khau tshwj xeeb yog siv tsis tshua muaj neeg, nws tsuas yog xav tau rau cov khoom niaj hnub niaj hnub. Tab sis lawv feem ntau siv txoj hauv kev txhaj tshuaj.

Txoj hauv kev no suav nrog kev nkag mus rau hauv polyurethane (seepage) rau hauv qab thiab sab saum toj ntawm khau. Cov tshuaj no txhim kho qhov tsis kam mus rau ya raws thiab cov tshuaj txhoj puab heev. Kev nce ntau ntxiv hauv thaj chaw tiv tauj kom ntseeg tau qhov tshwj xeeb.

Qhov tseem ceeb, qhov no tsis cuam tshuam qhov hloov pauv ntawm cov qauv ua tiav. Tab sis txheej txheem thev naus laus zis tau yooj yim dua - koj tsis tas yuav siv cov kua nplaum lossis xov ntxiv … Tab sis khau nrog cov hlau toecap tau siv qhov tsim cov khoom siv dag zog tau tsim, qhov twg muaj ntau yam khoom ntse thiab txiav qhov chaw. Kev nce nqi me ntsis tso cai rau kev ua haujlwm tag nrho lub neej tau nce ntau zaus. Hauv feem ntau cov qauv, siv cov tuab tuab tuab ntxiv nrog cov khoom poob siab ntxiv.

Npav

Lub ntsiab lus no tshwj xeeb tshaj yog tam sim no vim tias hauv Russia los ntawm 2018 (ntau dua, txij Lub Xya Hli 1) txhua tus tuam ntxhab thiab cov muag khoom yuav tsum saib xyuas daim ntawv lo. Nws siv tsis yog rau khau tshwj xeeb, los ntawm txoj kev. Kev tsim qauv yooj yim yuav tsum sib haum rau ob txoj cai raws li Cov Qauv Matrix Cov Qauv . Ib qho ntxiv, ntu tshwj xeeb ntawm cov tsiaj ntawv thiab tus lej nrog rau tag nrho ntev ntawm 31 tus cim tau siv.

Kev kos npe yuav tsum tau ua tiav ntawm kev muag khoom ua ntej xa khoom zaum kawg los ntawm lub chaw tsim khoom. Yog tias khau tau los ntawm EU, tom qab ntawd lawv yuav tsum muaj lub npe tshwj xeeb thaum lub sijhawm hla ciam teb ntawm Lavxias Lavxias. Cov khoom tseem ceeb tau qhia los ntawm cov ntawv sib txuas ntxiv:

• Мп - tiv thaiv qhov raug thiab txiav;
• Ma - kev co tsis kam;
• Lub hli (tus lej) - quab yuam cuam tshuam rau lub hauv paus hauv KJ;
• Mut (naj npawb) - lub zog ntawm lub tshuab rau sab nraub qaum;
• Mule thiab Moob - ntaus rau pob taws thiab lub ntsej muag, feem;
• Сж - txo cov zawv zawg ntawm cov rog;
• SL - glide me me ntawm cov dej khov;
• Cm - yam tsawg kawg swb ntawm ntub, qias neeg thiab lwm qhov chaw;
• Тн - tiv thaiv kub tsis zoo;
• Yazh - tsis kam ua kua tshuaj lom;
• Oa - cais tawm ntawm cov kuab tshuaj organic;
• Нт - rau kev sib cuag nrog cov khoom siv roj av.

Nrov manufacturers

Muaj ob peb lub tuam txhab hauv ntau lub tebchaws tau koom nrog tsim cov khau tshwj xeeb. Tab sis tseem, muaj cov thawj coj pom tseeb ntawm lawv hais txog qhov zoo thiab ntau yam khoom. Hauv peb lub tebchaws, qhov no yog lub tuam txhab "Tract". Nws cov khoom tau nquag xa mus rau txawv teb chaws. Ib tug xov tooj ntawm cov qauv khau tau ua siv cov roj hmab nitrile, cov khoom uas tsis yog xim hlau uas tsis tuaj yeem tiv taus.

Koj tuaj yeem pom cov kev xaiv:

• rau welders;
• rau kev ua haujlwm nrog cov khoom siv roj av;
• rau nyob rau hauv ib puag ncig tshwj xeeb txhoj puab heev;
• rau kev ua haujlwm nrog kev sib txuas lus muaj zog.

Tab sis hauv tebchaws Russia tseem muaj lwm lub chaw tsim khoom lag luam saum toj kawg nkaus - tuam txhab Tekhnoavia.

Tsis zoo li nws lub npe, nws tsis tsim tawm tsuas yog qhov xav tau rau kev tsim aviation thiab dav hlau.

Qhov ntau suav nrog lub caij ntuj no, lub caij ntuj sov, lub caij tsis muaj PPE rau ob txhais ceg.

Cov ntawv teev npe tseem suav nrog:

• khau rau kev kho mob xav tau;
• khau rau cov neeg uas muaj ko taw loj;
• cov cuab yeej dawb;
• cov khoom uas muaj cov thom khwm sab hauv;
• tawv khau rau txiv neej thiab poj niam;
• khau looj plab hlaub thiab khau looj plab hlaub (thiab qhov no tsuas yog ib feem me me ntawm qhov ntau).

Cov chaw tsim khoom hauv Finnish tseem tsim cov khau kev nyab xeeb zoo heev . Ntawm lawv, Sievi tsim nyog tau txais kev saib xyuas tshwj xeeb. Lub npe tau yug los hauv xyoo 1951 thiab tau tswj hwm los ua tus tsim khoom lag luam zoo ntawm kev ua haujlwm PPE nyob rau sab qaum teb Europe. Cov lag luam ntiav txog 500 tus neeg, thiab cov khoom lag luam tseem ceeb tau ua tiav los ntawm kev siv lub tshuab ua haujlwm. Lub tuam txhab muaj chav sim rau kev tsim cov kev sim nyuaj tshaj plaws.

Lawm, lub tuam txhab them nyiaj tshwj xeeb rau lub caij ntuj no. Txawm li cas los xij, Sievi tseem tsim cov khau ESD, uas yog tus yam ntxwv tsawg tshaj plaws ntawm kev tsim hluav taws xob zoo li qub.

Lub caij ntuj sov thiab lub caij nyoog tsis muaj caij yog sawv cev los ntawm:

• khau khiab;
• khau qis;
• khau ua haujlwm nrog thiab tsis muaj lub taub ntiv taw hlau;
• qauv nrog anti-puncture insole;
• cov qauv nrog lub hauv paus hlau (thiab txhua qhov kev xaiv no tiv taus roj, roj av).

Cov khau Asmeskas kev nyab xeeb kuj tseem dav heev. Yog li, Frye cov khoom lag luam tau nyob hauv khw txij li xyoo 1863. Tau kawg, lub sijhawm no, ntau yam tau hloov pauv hauv tshuab. Txawm li cas los xij, muaj cov tawv tawv sab saud thiab cov roj hmab ruaj ruaj tau pov thawj nws tus kheej rau ntau caum xyoo. Cov khoom lag luam zoo li tsis zoo li nthuav tawm, tab sis lawv yuav ua haujlwm ntev.

Thorogood hom ua lub npe rau nws tus kheej tsuas yog ua haujlwm khau thiab khau. Cov kev tshuaj xyuas sau tseg qhov yooj yim ntawm kev tsaws ib ceg. Nws kuj tseem tsom mus rau qhov tsis kam ntawm lub outsole.

Coob leej neeg tseem xaiv cov khoom lag luam:

• Chippewa (Asmeskas);
• Cofra (Fabkis);
• Pezzol (Ltalis);
• Reis (Poland);
• Ahiless Kev Nyab Xeeb (Russia);
• Ewest (Koom pheej Kauslim Teb).

Cov txheej txheem xaiv

Yog lawm, khau kev nyab xeeb yuav tsum yooj yim thiab xis nyob raws li ua tau rau cov neeg ua haujlwm ntawm ib lub chaw tshwj xeeb. Zoo li cuam tshuam ib ntus thiab ua rau lub siab qaug zog tas li tuaj yeem dhau los ua qhov xwm txheej uas yuav ua rau raug mob, raug xwm txheej, lossis "tsuas yog" yuav tsis tso cai rau koj ua txoj haujlwm kom raug thiab raws sijhawm. Nws yog ib qho tseem ceeb sib npaug los coj mus rau hauv tus account qhov zoo nkauj.

Tsis hais lub hom phiaj ntawm kev siv, khau kev nyab xeeb yuav tsum:

• nqa kev co nrog lub zog ntawm 2 dB (rau zaus ntawm 16 Hz);
• nqa kev co nrog lub zog ntawm 4 dB (ntawm zaus ntawm 31 thiab 63 Hz);
• tiv thaiv los ntawm tshuab rau ntiv taw nrog lub zog tsawg kawg 5 J;
• muaj cov ntaub thaiv npog uas nqus cua tshuab rau pob taws nrog lub zog tsawg kawg 2 J;
• yuav tsum tau nruab nrog ib leeg nrog qhov hnyav ntawm tsawg kawg 70 units ntawm Shore scale.

Tab sis qhov xav tau dav dav nyob deb ntawm txhua yam. Nws yog ib qho tsim nyog yuav tsum coj mus rau hauv tus account nuances ntawm qhov tshwj xeeb tshwj xeeb. Cov neeg tsim khoom feem ntau qhia kom siv khau. Cov qauv nrog kev tsim ua peb txheej tuaj yeem siv tau zoo thaum lub caij ntuj no. Tom qab ntawd khau looj plab hlaub ua los ntawm cov tawv tuab kuj tsim nyog.

Hauv lub caij sov, nws raug nquahu kom siv cov khau tawv tawv nrog tiv thaiv kev raug mob thiab cuam tshuam . Qhov teeb meem yog tias lawv tsis haum rau kev siv vuam thiab lwm yam haujlwm uas cov hlau yaj tuaj yeem tshwm sim. Cov neeg yuav khoom yuav tsum hnav cov khau tawv tawv nrog tus nplaig kaw nruj. Nws yuav tsis tso cai rau cov hlau kub nkag sab hauv. Tab sis yog tias muaj ntau ntau cov hlau nyob ib puag ncig (hauv cov foundry, piv txwv), tom qab ntawd koj yuav tsum hnav cov khau nrog cov khau khiab.

Tawv khau nrog khau pob taws siab yuav luag yog qhov kev xaiv thoob ntiaj teb . Lawv tau nruab nrog tus nplaig built-in. Feem ntau, tawv lossis tawv tawv chrome yog siv rau xaws. Cov khau no tuaj yeem siv rau kev ua haujlwm hnyav sab hauv tsev thiab sab nraum zoov. Kev tuav ntawm lub outsole txo qhov kev pheej hmoo ntawm kev ntog txawm tias nyob hauv dej khov.

Asphalt paving feem ntau yog ua los ntawm khau tawv tsis muaj tread, tab sis nrog cov tuab tuab . Cov khau zoo li no yuav tsis poob txawm tias yog txheej tuab xoob ntawm asphalt qhob. Dab tsi yog qhov tseem ceeb, yuav tsis muaj ib txoj hauv kev ntawm txoj kev ib sab. Cov neeg tsim qauv niaj hnub no ua tiav kev tiv thaiv taw kev ruaj ntseg txawm tias nyob hauv asphalt kub txog 270 degrees. Tab sis thaum ntsib txoj haujlwm, lawv feem ntau sim yuav cov khau uas hnyav tshaj plaws.

Rau lub tsev rau khoom, lawv feem ntau xaiv khau kev nyab xeeb uas tsim los rau qhov siab tshaj plaws. Cov npe ntawm qhov yuav tsum tau txiav txim siab los ntawm yam khoom tshwj xeeb thiab cov khoom muaj txiaj ntsig tau khaws cia hauv lub tsev rau khoom. Nyob ntawm qhov no, koj yuav xav tau:

• tsis kam rau cov khoom siv roj av;
• tiv thaiv cov tshuaj lom;
• tiv thaiv kev txiav thiab cuam tshuam;
• tiv thaiv los ntawm cov tshuaj reagents, cov kua qaub thiab alkalis;
• yam tsawg kawg ntawm kev swb thiab qee qhov tsis xws luag.

Cov lus qhia ua haujlwm

Cov khau nyab xeeb yuav tsum siv nruj me ntsis raws li lawv siv raws caij nyoog. Cov tawv tawv tau ntub, txawm tias me ntsis, thiab qhov no yuav tsum raug coj mus rau hauv tus account . Nws tsis tuaj yeem ua txhaum txoj cai uas tau tshaj tawm los ntawm kev kos lossis nkag mus rau hauv cov ntaub ntawv nrog. Thaum lub sijhawm hnav dhau lawm (tom qab ua haujlwm tas lossis thaum kawg ntawm lub caij), khau tau raug ntxuav, ntxuav thiab muab tso kom raug.

Nws yog qhov tsis yooj yim sua kom siv txhawm rau txhawm rau hlawv, hlawv, khoos phis tawj lossis cov khoom siv tshuaj tiv thaiv tus kheej puas.

Khau thiab hle khau kev nyab xeeb, koj yuav tsum tau saib xyuas lawv ib yam nkaus li ib txwm muaj . Kev tu yuav tsum tsuas yog ua los ntawm txoj hauv kev thiab cov txheej txheem uas muaj kev nyab xeeb rau cov khoom siv tshwj xeeb. Tsis txhob siv cov kuab tshuaj organic los ntxuav, txawm tias khau tau tshaj tawm tias tiv taus lawv.

Nws yog qhov tsis xav tau (tshwj tsis yog qhov xwm txheej tshwj xeeb) nyob hauv khau ntau dua 9 teev yam tsis tau so.

Tom qab kis kab mob nrog tshuaj lom, tshuaj muaj kuab lom thiab tshuaj lom neeg lom, tshwj xeeb yog kev tua kab mob yog qhov tseem ceeb.