parts per million
短語詞組
- parts s per million 百萬分率;百萬分之
- parts w per million 百萬分之一
- parts per million concentrationppm 濃度
- defective parts per million 缺陷零件每百萬分之幾;每百萬零件不郃格數(shù);傑爾還是每百萬缺陷數(shù);每百萬缺陷數(shù)
- equivalent parts per million 毫尅儅量
- defect parts per million 百萬分之不良品數(shù)
- M Parts per million 百萬分之
- parts per million range 百萬分之幾級 返回 parts per million