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所有的钻井水都要按每桶加两磅的戊二醛作预处理。All drill water to be pretreated with 2 ppb Gluteraldehyde.

按每桶钻井液加25磅的膨润土,允许水化至少6个小时。Add 25 ppb Bentonite and allow to hydrate for a minimum of 6 hrs.

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该基因在进化过程中高度保守。The transcript of the PPB gene is highly conserved during evolution.

食品和水同样含铅,如今,美国环保署允许饮用水的含铅量是15PPB。Food and water all contain lead. Currently, the EPA allows 15 ppb of lead in your drinking water.

型石墨炉配件采用PPB同阶段分析的最新的技术。The Model 220 GF accessory is the latest technology in PPB level analyses by graphite furnace AA.

结论使用这两种装备进行加压呼吸均可造成MAP、TPR和HR明显增加,SV明显减少。Conclusion PPB resulted in elevation of MAP, TPR, HR and decline of SV significantly using two kinds of Jerkin G suit.

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。In original English language for the 1st impression. The Net Price to the Publisher is at the ratio 1.6 of the PPB cost.

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以泡塑富集金、以镍盐作基体改进剂,提高了金的回收率和稳定性。The gold concentrated with poly-urethane foam was roasted by adding Ni to obtain a stable recovery of gold in ppb Level.

这特别适用于在饮料用品中必须将含量降低到20ppb以下的苯之类的杂质。This is particularly useful for impurities such as benzene which are required to be removed to below 20 ppb for beverage applications.

采用PPB计费,不仅能使不同用户享有公平性,服务提供商也可利用价格杠杆优化网络流量,合理配置网络资源。PPB is fairness to each kind of user, and ISPs can also use price lever to optimize the network traffic and configure network resources properly.

通过调整合金成分、选择合适的粉末制备和处理工艺以及改进成形工艺等措施可以消除PPB。PPB can be avoided or reduced through measures like modifying the chemistry of the alloys, ophimizing the processes of powder production and powder treatments as well as HIP parameters.