“ppm”的概念、定义、翻译、参考文献-科学参考

单词	ppm
释义	ppm Physics ppm①parts per million 百万分之［几］，百万分率 ②pieces per minute 磅/分，每分钟磅数
随便看	triggering triggering factor triggering self-immolative polymer trigger mechanism trigger strategy trigger system trigistor triglyceride triglyceride lipase triglyceride lipase (TGL) triglycine sulfate crystal triglycine sulphate triglycol trigon trigonal trigonal aspect trigonal carbon trigonal crystal system trigonal dipyramid trigonal hybridization trigonalizable trigonalizable element trigonalizable matrix trigonal lattice trigonal planar configuration

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