ppb的意思|示意

美 / / 英 / /

abbr. （美）十亿分之一（Parts Per Billion）

1、 ppm-ppb 浓度较低,灵敏度高

2、 PPR PPB PPH 要用于生产聚丙烯类

3、 Hz and ppb 校准

4、 ppt-ppb 分辨率

5、 PPB Power Parking Break 电子驻车制动系统

8、 ppb part per billion 十亿分之,十亿分一

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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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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It'shows that 0.2 ppb of Ag + can be quantitatively absorbed from aqueous solution sample.

水样中0.2ppbAg~+可定量被吸附.

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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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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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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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