英语词汇“p.p.m”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	p.p.m
释义	p.p.m abbr. parts per million 百万分之…,百万分率
随便看	fixed carbon ratio fixed-carbon ratio fixed car deck fixed carrier fixed casement window fixed catalyst fixed catalyst bed fixed cavitation fixed cavity fixed cell fixed cellular network fixed center fixed-center change gear fixed center change gears fixed center distance fixed centre fixedcentre fixed centre of mass for jib balance fixed centrode fixed centroid fixed channel fixed channel reconnaissance fixed-charge fixed charge fixed charge collector 事前要胆小，事后要胆大事危则志锐，情苦则虑深事去大床空独卧，时来竖子或成名事去已荒前日梦，情多犹忆少年时。江南红豆最相思。事去空垂悲国泪，愁来莫上望乡台。事变知人心事只五分无悔，味只五分偏美事同众则公，公则百美基；专则私，私则百弊生事后论人，局外论人，是学者大病。事后论人，每将智人说得极愚；局外论人，每将难事说得极易。事后诸葛亮 26945 26946 26947 26948 26949 26950 26951 26952 26953 26954