Kev ceev faj rau kev tuav calcium nitrate

Airtight ua haujlwm, ntxiv dag zog rau qhov cua. Cov neeg ua haujlwm yuav tsum tau txais kev cob qhia tshwj xeeb thiab ua raws li cov txheej txheem ua haujlwm. Nws raug nquahu kom cov neeg ua haujlwm hnav lub ntsej muag lub ntsej muag plua plav plua plav, tsom iav kev nyab xeeb, khaub ncaws tiv thaiv polyethylene, thiab hnab looj tes neoprene. Khaws kom deb ntawm qhov hluav taws kub thiab cua sov, thiab kev haus luam yeeb yog txwv tsis pub nyob hauv chaw ua haujlwm. Tsis txhob tsim cov hmoov av. Tsis txhob sib cuag nrog cov tshuaj txo qis thiab cov kua qaub. Thaum tuav, thauj khoom thiab tshem tawm me me kom tsis txhob muaj kev puas tsuaj rau cov ntim thiab ntim. Nruab nrog cov hom sib xws thiab ntau ntawm cov khoom siv tua hluav taws thiab cov khoom siv kho mob thaum muaj xwm ceev. Cov thawv khoob yuav ua rau muaj teeb meem seem.