英语词汇“p.p.m.”的翻译、意思、用法、释义-英汉汉英词典

单词	p.p.m.
释义	ppm, p.p.m., PPM abbr.parts per million 百万分之…,百万分率以上来源于：《21世纪大英汉词典》 p.p.m.abbr.① parts per million百萬分之一（微少含量的單位）p.p.m.每分钟投纬数；百万分之一p.p.m.每分鐘投緯數；百萬分之一紡織科技
随便看	lrgrammar lrh lrh-- luteinizing hormone-releasing hormone lrh; luteinizing hormone-releasing hormone lri lric lric--long run incremental costing l-rider lri--left-right indicator lrim lrish moss lr(k) grammar lr(k)文法 lrl lr--line receiver lr(liquor ratio) lrl--logical record length lr--load register lr--local register lr (local release) lr--logical record lr--low right lr {lrs} {lloyd's register of shipping} lrm lrmgard