“parts per hundred million”的概念、定义、翻译、参考文献-科学参考

单词	parts per hundred million
释义	parts per hundred million Physics pphm=parts per hundred million亿分之一
随便看	Phra Pathomchedi Phra Phuttha Loet La Naphalai phrasal dictionary phrase phrase-based statistical machine translation phrase-based statistical translation model phrase-observing meditation phraseological dictionary phraseological unit Phraseology phrase search phrase structure based syntactic structure phrase structure grammar phrase-structure grammar phrase structure grammar, PSG phrase structure rule phrase structure tree phrase stucture grammar phreatic flow phreatic line phreatic water pH regulation pH regulator phrenic nerve phrenosin

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