Ncu nqus tsev vacuum nrog ob chav dej tank

Ob chav dej ua haujlwm tank tsim tso cai rau cov kav dej txuas hniav txuas ntxiv yam tsis tas yuav tsum tau ua kom lub taub dej tas li. Cov yeeb yaj kiab no ua rau cov ntaub npuag ua kom huv huv thiab yooj yim siv, txuag lub sijhawm thiab kev siv zog rau cov neeg siv.
Ntxiv rau qhov yooj yim tso tawm ob chav dej tank, no cov ntaub tov khaub noom nqus tsev ntxhua khaub ncaws yog tseem nruab nrog cov khaub ncaws muaj zog thiab cov chaw ntsuas kub. Qhov no tso cai rau cov neeg siv hloov cov chav tso zis tawm mus rau hom ntaub tau ntxuav, ua kom huv tau tu cov ntaub thiab cov khoom siv nruj heev.
Nrog nws cov peev xwm ntxuav tau ntau yam thiab cov neeg siv cov ntaub tov cov ntaub tov los ua kom tau xaiv cov tsev neeg thiab cov lag luam ib yam nkaus. Tshem tawm cov tawv ncauj stubs thiab cov ntxhiab tsw nrog kev pab ntawm qhov kev tsim tawm tshiab thiab muaj txiaj ntsig zoo huv si.
Hauv cov ntsiab lus, kev qhia ntawm cov ntaub soch nqus tsev ntxhua khaub ncaws Nws cov yam ntxwv tshiab thiab muaj peev xwm siv tau muaj zog ua rau nws yuav tsum muaj cov cuab yeej ntxuav kom huv thiab tshiab.