spare parts
百万分率,百万分之几
parts per million(ppm)
暂无补充释义。
相关词条
parts list
parts per million\nppm\n科技
private parts
large parts
parts per million
embossing shoe parts with high-frequency
moving parts
parts per million(ppm)
暂无补充释义。
spare parts
parts list
parts per million\nppm\n科技
private parts
large parts
parts per million
embossing shoe parts with high-frequency
moving parts