01 Coolant Introduction Coolant, raws li lub npe qhia, nws yog cov khoom ua kua siv los khaws cia txias, nws yuav tsum muaj peev xwm khaws cia txias. Muaj ib yam khoom nyob rau hauv qhov uas yog ib tug zoo coolant, uas yog dej. Nws yog qhov paub zoo tias dej yuav khov rau lub caij ntuj no thaum ...
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