| 释义 |
ppb 释义 磅的 例句 1·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。 2·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。 3·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。
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