| 释义 |
ppbCOCA⁵¹⁹⁹⁸BNC⁴⁵⁸⁵⁵
基本例句
n.十亿分之几⁵⁰零件供应中断;程序接线板⁵⁰
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。 cnki
The Breast Cancer Fund collected2 samples of 6 different types of food marketed to children, and found levels of BPA ranging from 21 parts per billion ppb to77.5 ppb, with an average of49 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。 yeeyan
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。 cnki
The Model220 GF accessory is the latest technology in PPB level analyses by graphite furnace AA.
型石墨炉配件采用PPB同阶段分析的最新的技术。 www.e-gtm.com.cn
The modified polypropylene was prepared by grafting propylene- butadiene PPB copolymer with maleic anhydrideMAH in solution process.
用溶液接枝方法将马来酸酐接枝于丙烯-丁二烯共聚物 PPB，制得聚丙烯改性产物。 cnki
Based on the flow- injection spectrophotometry and the reaction principle of molybdenum blue, a new automatic analysis method for the rapid determination of ppb-level silicate was developed.
基于流动注射分析技术和硅钼蓝反应原理，开发成功一种快速准确测定电厂炉水和给水中痕量硅的自动分析方法。 dictall
Conclusion PPB resulted in elevation of MAP, TPR, HR and decline of SV significantly using two kinds of Jerkin G suit .
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。 cnki
Objective To compare cardiovascular function of subjects exposed to positive pressure breathing PPB while wearing G suits with different bladder coverage.
目的探讨加压呼吸时抗荷裤的囊覆盖面积大小对心功能的影响。 dictall
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 PPB的发生率，结果以及相关的危险因素。 www.csde.org.cn
The transcript of the PPB gene is highly conserved during evolution.
该基因在进化过程中高度保守。 cnki
The serious quench crack is due to the PPB carbides and on their surfaces formation of rich- oxygen layer destroying continuity of alloy and promoting fracture along the previous particle boundaries.
结果表明，开裂严重的是由于 PPB碳化物及在其外表面形成富氧层破坏了合金的连续性，促使沿原颗粒边界断裂。 cnki
Under PPB, SV increased significantly when chest counter pressure was equal to the mask pressure.
在加压呼吸条件下，胸部对抗压与面罩腔内压力相等，对提高 SV有明显效果。 cnki |