ppb
英
ppb中文翻译
abbr.（美）十亿分之一（PartsPerBillion）
ppb是什么意思
网络 十亿分率; 十亿分之几; 十亿分之一浓度
- 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
- 6.PPB ProgrammedPatchBoard 程控接线板
- 7.ppb parts per billion 十亿分之几
- 8.ppb part per billion 十亿分之；十亿分一
- 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。
- 4.
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。
- 5.
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。