英语词汇“primary standard substance”的读音、翻译、释义、用法及例句-智慧网

词汇	primary standard substance
释义	primary standard substanceprimary standard substance1.■基准物(质)
随便看	smokery smoker’s face smoker’s keratosis smoker’s melanoplakia smoker’s patch smokes smoke sb.'s coat smokescope smokescopy smoke screen smokescreen smoke-screen bomb smoke screening manoeuvre smoke screen laying manoeuvre smoke screens smoke shade smokeshade smoke shaft smoke sheets smoke shelf smoke shell smoke shutter smoke signal smoke spot smokestack

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