词汇“PPM”的意思、用法、释义、翻译、读音、例句、短语、词组-国际大辞典

单词	PPM
释义	PPMPPM1.■=Parts Per Million 百万分之几, 百万分率;2.■Periodic Permanent Magnet 周期性永久磁铁;3.■Pulse Phase [Position] Modulation 脉冲相位[位置]调制;4.■Pulses Per Minute 每分钟脉冲数
随便看	screw pelletizer screw-pitch deviation screw pitch gauge screw plate screw plough screw plug screw-plug cutout screw-plug fuse screw pressure lubricator screw propeller screw pump screw punch screw rail bender screw retarder screw retention screw ring screw rivet screw rod screw rolling screw rolling machine screw root screw rule screw shaft screw shaft bushing screw shaft distance piece

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