PPB
基本解释
- n.十亿分之几(零件供应中断；程序接线板)
英汉例句
- Add 25 ppb Bentonite and allow to hydrate for a minimum of 6 hrs.
按每桶钻井液加25磅的膨润土，允许水化至少6个小时。 - All drill water to be pretreated with 2 ppb Gluteraldehyde.
所有的钻井水都要按每桶加两磅的戊二醛作预处理。 - The detection limit for surface waters is 0.05 ppb U .
检出下限为0.;05ppb; - For ISSR marker, 34 polymorphic bands were generated, PPB were 53.0%.
ISSR引物共扩增到34条清晰的多态性条带，多态性条带比率为53.;0%25。 - In original English language for the 1st impression.The Net Price to the Publisher is at the ratio 1.6 of the PPB cost.
原书第一次印刷的文字形式是英文。出版者支付的净价依据PPB成本1.;6的比率计算。