Dab tsi yog potability?
Dab tsi yog potability?

Video: Dab tsi yog potability?

Video: Dab tsi yog potability?
Video: Hmong new song 2016 - Yog dab tsi - Xub Hluav Taws (Official MV) 2024, Kaum ib hlis
Anonim

npe. Kev txhais ntawm muaj peev xwm (Nrawm 2 ntawm 2): cov kua uas haum rau haus tshwj xeeb tshaj yog: ib qho dej cawv.

Tsis tas li ntawd, potability txhais li cas?

Yog ib yam dab tsi muaj peev xwm tias txhais tau tias nws muaj kev nyab xeeb rau haus. Hauv cov teb chaws tsim kho, cov kais dej feem ntau yog muaj peev xwm . Cov dej tsis huv. Potable kuj tuaj yeem ua ib lub npe, lub ntsiab lus tej kua dej haus.

Tsis tas li ntawd, lub peev xwm ntawm cov dej txiav txim siab li cas? Coliform-test-technique (los yog MTFT) yog ib txoj hauv kev ua raws li thoob plaws ntiaj teb txiav txim siab seb cov dej yog potable los yog faecally polluted. Nyob rau hauv kev ntsuam xyuas presumptive, lactose broth tubes yog inoculated nrog peb sib txawv dej ntim los muab qhov kwv yees ntawm tus lej feem ntau (MPN) ntawm cov ntawv coli hauv dej.

Hais txog qhov no, koj hais li cas potability?

Lo lus derived los ntawm Latin potare, lub ntsiab lus haus, thiab kev lig kev cai ntev o suab nyob rau hauv Latin tau khaws cia nyob rau hauv lub kev hais lus ntawm muaj peev xwm yog li nws suab ib yam li /POE-tuh-bull/.

Puas yog dej haus lossis dej haus?

Haus dej , kuj hu ua dej haus , yog dej yog nyab xeeb haus los yog siv rau kev npaj zaub mov. Feem ntau hauv cov teb chaws tsim, coj mus rhaub dej ntsib dej haus cov qauv zoo, txawm tias tsuas yog ib feem me me xwb tau noj los yog siv hauv kev npaj zaub mov.

Pom zoo: