英语词汇“penetration index”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	penetration index
释义	penetration index 针入度指数
随便看	propeller bracket propeller brake propeller break propeller bronze propeller camber ratio propeller cap propeller capacity propeller cavitation propeller cavitation noise propeller center propeller characteristic propeller characteristics propeller chart propeller circle propeller coefficient propeller cone propeller control propeller controller propeller control switch propeller cowling propeller cuff propeller cuffs propeller current propeller current meter propeller dead stick