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。
Abstract: the existence of chlorophenol compounds in water volume reaches PPB concentration that there will be a stench.
摘要：氯酚类化合物在水中的存在量达到ppb浓度时即会出现明显的恶臭味。
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。
The gold concentrated with poly-urethane foam was roasted by adding Ni to obtain a stable recovery of gold in ppb Level.
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。
Objective: to assess the PPB rate and outcome and identify risk factors associated with PPB in patients taking clopidogrel.
目的：评估服用氯吡格雷病人P PB的发生率，结果以及相关的危险因素。
Background: The risk of postpolypectomy bleeding (PPB) in patients undergoing colonoscopy on uninterrupted clopidogrel therapy has not been established.
背景：连续服用氯吡格雷的病人进行结肠镜时，PPB的危险因素尚未建立。
The association interaction parameter of PPB-MAH can be used to express the molecule polarity quantitatively, and the ellipse equation can be used to estimate the solvability of solvents.
MAH的缔合力参数可以用来量化表示其分子极性，椭圆方程可以用作溶剂的可溶性的预测。
The Breast Cancer Fund collected 2 samples of 6 different types of food marketed to children, and found levels of BPA ranging from 21 parts per billion (PPB) to 77.5 PPB, with an average of 49 PPB.
乳腺癌基金会选取了六种面向儿童市场的食物，并各抽取了两个样本进行研究。研究结果发现这些食物中双酚含量范围为十亿分之二十一到十亿分之七十七点五，平均含量为十亿分之四十九。
The Breast Cancer Fund collected 2 samples of 6 different types of food marketed to children, and found levels of BPA ranging from 21 parts per billion (PPB) to 77.5 PPB, with an average of 49 PPB.
乳腺癌基金会选取了六种面向儿童市场的食物，并各抽取了两个样本进行研究。研究结果发现这些食物中双酚含量范围为十亿分之二十一到十亿分之七十七点五，平均含量为十亿分之四十九。
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