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	gaseous propellant engine gaseous radiation waste gaseous rectifier gaseous reducing agent gaseous regulator gaseous scintillation counter gaseous solubility gaseous solution gaseous spoilage gaseous state gaseous steam gaseous tension gas epithelium gaser gas escape gas escape valve gas etching gas-ether anesthesia gasetron gas evolution buret(te) gas examination gas exhauster gas expanded rubber gas expansion gas-expansion turbine

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