Taw qhia Cov pa roj xws li oxygen, nitrogen, carbon dioxide, argon, thiab hydrogen yog lub hauv paus rau ntau qhov kev lag luam, suav nrog kev kho mob, kev tsim khoom, thiab kev ua zaub mov. Cov pa roj carbon monoxide no yuav tsum yog cov ntshiab huv thiab tsis muaj cov kab mob kom ntseeg tau tias muaj kev nyab xeeb thiab ua haujlwm tau zoo. Gas lim...
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