英语词汇“free-air helmet”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	free-air helmet
释义	free-air helmet 新鲜空气呼吸面具
随便看	Combined cis. combined city combined clamp combined clasp combined closed-loop and once-through cooling combined closure method combined clutch combined code combined coefficient Combined collector combined colour image combined column combined column footing combined combustion combined command combined communication Combined Communication Board combined company policy combined competition combined compressed-air and hydraulic brake combined compressed air and hydraulic brake combined compressed air and vacuum brakes combined compressed-air and vacuum brakes combined compressor combined condensate return system 桃源今度难认桃源望断无寻处桃源梦已稀桃溪不作从容住桃溪换世桃笙平展湘浪影桃红复含宿雨桃花一簇开无主桃花乱落如红雨桃花何代；不知江左針葉樹針術針路針金ハナススキハナズモウハナセルハナゾノハナタカダカハナタケ