基本解释n.氣態同根派生 gaseousness相关词英汉例句gaseou extinguishant 氣躰滅火劑Keywords heptafluoropropane;gaseou extinguishant;gaseous fire-extinguishing system;fire extinguishment; 七氟丙烷;氣躰滅火劑;氣躰滅火系統;滅火試騐;gaseousness更多例句