查询词典 PE

Kinetics of methanol dehydration to dimethyl ether on modified kaolin catalyst was studied in an integral reactor under normal pressure. It is deduced that the surface reaction of methanol molecule adsorbed on the active site of catalyst with methanol molecule in gas phase is the rate determining step. The hyperbolic type kinetic equation r=ksbMpM2/(1+bMpM+bpE) is obtained according to the theory of langmuir even adsorption and using the R-E mechanism.

采用积分反应器，考察了常压下在改性高岭土催化剂上甲醇脱水生成二甲醚的反应动力学，根据Langmuir均匀吸附理论，采用R-E机理，推断吸附的甲醇分子与气相主体中的甲醇分子发生的表面反应为速率控制步骤，得到双曲线型动力学方程为： r= ksbMpM2 /(1+bMpM+bpE)（r为反应速率， ks为反应速率常数， bM为甲醇的吸附平衡常数， b为二甲醚和水的吸附平衡常数之和， pM、 pE分别为甲醇、二甲醚的分压）。

In contrast,the imides derivatives of maleated polyethylene are stable for long periods of time at 160℃,and the decomposition of phenethylamine imide-,9-aminomethylphenanthrene imide-derivatives is initiated slowly at 255℃ and 280℃,respectively.

聚乙烯的化学改性已得到广泛应用，它能使PE获得新的物理化学或功能特性，如改进其表面粘合、亲水及吸湿、染色和印刷性质等，尤其在增加它与其它聚合物的相容性，制备共混材料时常常是必不可少的[1 ，2 ] 。

For local enterprises, especially transformed state-owned enterprises, it is an inarguable mission to establish a scientific system for PE, which shall adhere to the situation of China and be of help for enterprises development.

如何建立科学的、符合中国国情的以及适应和促进企业发展需要的绩效考核方案，对于国内企业特别是改制后的国有企业来说，是一个不容忽视的管理内容和艰巨的任务。

I'll borrow one of CR's charts, this one showing the ratio of an index of home prices to an index of rents so it's kind of like a PE ratio for stocks

我将借用CR的图表之一，这显示一个家庭的一个价格指数比的租金指数（所以它有点像对股市市盈率

The Control Factor Analysis of High-speed BOPP Speciality Quality Index;2. Application of speciality PE resin for Coated Pipe;3. By adjusting polymerization process conditions,the PP speciality YF3003 for high-speed biaxial oriented film was produced by using Hypol process with four reactors.

利用4个反应器串联的Hypol工艺进行高速BOPP专用料的研制开发，通过聚合工艺参数的调整，生产高速BOPP专用料YF3003；从常规物性、热行为、核磁共振谱、相对分子质量及其分布、加工性能等几方面对YF3003试验料和进口高速BOPP料A，B进行分析表征。

However, the proportion of PE in which does not inflate the total combined the volume of several billions of it.

然而，体育的比例不膨胀总结合了它的数十亿量。

One circuit of APF using IGBT(Insolate Gate controlling Bipolar Transistor) is introduced in this paper, the Simulation approach about the protection of IGBT is present. Some good results are given. r 35lAI--http://www.cn-pe.cn8cMt4c

本文介绍了一种使用IGBT(Insolate Gate controlling Bipolar Transistor)的电力有源滤波电路，并从保护电力电子器件的角度对电路进行了仿真研究，得到一些有益的结论。

Items of Eysenck Personality Questionnaire were translated into Chinese and analysed through biserial correlation with the 4 scales. A slightly modified EPQ in Chinese was given to 370 schoolchildren aged 7—15. Their scores in personality characteristics showed that (1) boys score higher extraversion and psychoticism than girls and girls have higher neuroticism and lie scores than boys,(2) the intercorrelation of PL is negative and very high, that of PE PN EN are all below 0.30 exclusively,...

本研究使用艾森克人格问卷，测试在校儿童370人，发现：男孩的外倾性和倔强性高于女孩，而女孩的情绪性和掩饰高于男孩；儿童的情绪性、外倾性和倔强性都有随年龄而增加的趋势，自身隐蔽和掩饰则随年龄减少；从量表统一关系分析：精神质低的儿童较多，精神质和神经质都低的也多；与前人文献相比，现在男孩的冒险性和女孩的社会活跃性较为明显。

It remains a challenge to clinicians in diagnosis and management of perioperative massive PE while TEE could provide invaluable information in cases irresponsive to cardiopulmonary resuscitation.

严重肺栓塞的诊断及治疗对临床医师是很大的挑战。TEE在对心肺复苏术反应不佳的病人身上，可以提供很有用的资讯。

In the beginning, we wer e all a bit worried that by at tempting to please both the PE AR DB and Metabase users the r esult would end up pleasing ne ither side.

在起初，我对尝试同时取悦 PEAR DB 和 Metabase 的用户但是结果可能到处不讨好多少有些担心。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。