PPB

  • PPB
  • abbr.

    part per billion 10亿分之…;

纠错 数据更新时间:2024-12-22 23:52:50
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.

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2、

DON amounts of various components were in the range of 2900~18670 ppb during milling process.

制粉过程各组分DON含量在2900~18670ppb之间.

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3、

Sulfinert coating provides stable storage of sulfur and mercury at ppb levels in petroleum samples.

硫钝化的涂层为采样罐提供了稳定的性能,可以储存PPB级的含硫样品.

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4、

As for drilling mud but made up with 35 ppb Bentonite to 100 + vis.

对钻井液,按每桶35磅比例加入膨润土,使粘度达到100秒.

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5、

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%.

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6、
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