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	zenithal equidistant projection zenithal projection zenith angle zenith-angle variation zenith distance zenith distance measurement zenith position zenith telescope zenithward zenkerism zenkerize Zenker's solution Zeno Zenobia zenodiagnosis zenographic coordinates zenography zenol Zenonian Zenopsis zenotropism zenstomin zentropil zeo-Dur zeokarb H

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