PPB

 
       
  • n. 十亿分之几(零件供应中断;程序接线板)

PPB的用法和样例:

例句

  1. 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。
  2. 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。
  3. The detection limit for surface waters is 0.05 ppb U .
    检出下限为0.;05ppb;
  4. 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。
  5. 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。
  6. Of these bands, 114 were polymorphic, and the percentage of polymorphic bands (PPB) was 95.00%.
    其中,多态性谱带114条,多态性带百分率(PPB)为95.;00%25。
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