Xov Xwm Tuam Txhab

Dab tsi yog qhov zoo ntawm kev kho mob oxygen cylinders?
los ntawm Admin nyob rau hauv 23-04-07
Oxygen yog lub hauv paus mob rau peb ciaj sia.Yog tsis muaj oxygen, peb yuav tsis muaj sia nyob.Peb tuaj yeem pom hauv tsev kho mob tias qee tus neeg mob xav tau cov pa oxygen kho mob.Vim tias cov neeg mob no tuaj yeem ua pa ib txwm ua los ntawm lub tog raj kheej oxygen, muaj cov kev cai nruj rau kev khaws cia ...
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Yuav Ua Li Cas Cov Khoom Sib Tw
los ntawm Admin nyob rau hauv 23-02-27
Qhov taw qhia ntawm Cov Khoom Sib Tw Txawm hais tias cov khoom lag luam muaj kev sib tw feem ntau yog tshwm sim hauv ob yam: ib qho yog nws txoj haujlwm ua lag luam;lwm qhov yog nws qhov xwm txheej muag.Rau ib yam khoom, nws cov kev sib tw yuav tsum tau tshwm sim nyob rau hauv ob yam: ib qho yog piv nrog cov zoo li p ...
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