parts per翻译
parts per的基本解释
读音: 美: 英:
百万分之:表示一种物质在另一种物质中的浓度,通常用于描述非常小的浓度。
例句
Want concentration of CO2 in atmosphere lowered from 380 to 350 parts per million.希望将大气中二氧化碳含量由百万分之380降低到百万分之350。A normal amount of CO in your blood is extremely low — zero to eight parts per million.血液中CO普通含量相当低——零至百万分之八。
We have an ability to smell incredibly small concentrations, down to as little as two parts per trillion.人类可以闻到微小浓度的物质,哪怕浓度小到一万亿分之二。
短语
parts per million 百万分之 ; 百万分率 ; 不良率parts per billion 十亿分之几 ; 十亿分之一 ; 十亿分率 ; 分之一公克
parts per trillion 兆分之一 ; 万亿分之几 ; 百亿亿分之几
0
纠错
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