查询词典 PE

Shrinkable packer is automatic successive shrinkable packaging device is the latest pattern in our country, using quartz farness ultrared rays tube electricity-saving (may save more than 15%); the humidity of shrinking the conveying rate of the electric machine is adjusted, the adjusting range is extensive;iginal creation roller rotation devise can work continuously.

佛山pe热收缩包装机〓中山热收缩机〓深圳收缩炉〓东莞pe收缩包装机/珠海收缩机〓收缩机〓热收缩机〓收缩包装机〓热收缩包装机〓收缩炉〓烘干炉〓烤箱是目前国内最新型的自动连续收缩包装设备，采用石英远红外管加热，节电高效（节电15%以上）；收缩湿度和电机机传机速度稳定可调，且调节范围广；独创滚筒自转装置，可连续工作。

Based on the high standard sports of Texas University, USA, this paper intents to probe into the following aspects: How does the PE Teaching of American Universities develop a very high standard sports team with all dimensions while keeping high standard universal education; The teaching mode: high standard sports brings abundant sponsorship and donation which conversly stimulate the flourishment of PE teaching.

文章以美国德州大学发展高水平的竞技运动为切入点，具体探讨美国大学体育教育如何在保持高水平的普及教育的同时，发展出一支具有极高水平的全方位的竞技运动团队；高水平的竞技运动带来的大量赞助和捐款又反过来进一步促进体育教育事业的蓬勃发展的教学模式，为我国同行提供思考和借鉴。

The kinetic behaviors of ethylene homo- olymerization and ethylene / l-hexene co-polymerization , catalyzed by the metallocene catalyst PS-DVB-MC in an 0.5 L stainless steel reactor , were studied. The effects of polymerization conditions on ethylene polymerization , such as concentration of catalyst , temperature of polymerization , pressure of ethylene , molar ratio of AI / Z r , etc ., were also investigated . Some leading results were as follows : the activity of the catalyst PS–DVB- MC for ethylene homo-polymerization was high ( 1.053 x 107 gPE / mol Zr·h ), but the molar ratio of AI / Zr was low ( 350:1 ); the catalytic ability for ethyleneα-olefin ( such as l hexene etc .) co-olymerization was great , and the corresponding activity come up to a maximum of 1.753 x 107 gPE / mol Zr·h while concenlration of l-hexene was 0.080 mol / L ; the molecular weight of polyethylene was about 180,000 , meanwhile the molecular weight distribution was narrow ( 2.19 ); the bulk density of polyethylene and ethylene / l-hexene co -polymer were 0.25 and 0.34 respectively .

采用0.5L高压不锈钢反应釜，对催化剂PS–DVB-MC催化乙烯均聚和乙烯/ l-己烯共聚合的动力学行为进行了研究，详细考察了催化剂浓度、反应温度、压力、Al/ Zr比、1-己烯浓度等因素对乙烯聚合反应的影响，得到如下主要结论：催化剂PS-DVB-MC具有催化乙烯均聚的高活性(1.053×107g PE / mo1 zr.hr)，低Al / Zr比( 350：1 )；具有良好的催化乙烯与α-烯烃(如1-己烯等)共聚的能力，在1-己烯浓度为0.080 mol / L时，催化活性达到最大(1.783×107 g PE / molZr.hr)；乙烯均聚产物的分子量在18万左右，分子量分布窄( 2.19 )。

At present, the problems of our PE curriculum aesthetics research,such as treating the material level beauty of sports culture isolatedly and neglecting the beauty of sports learning , so it entangled in question closely on what is the PE curriculum aesthetics and neglected students\' status and role in beauty creation of learning.

当前，我国对体育课程美的研究尚存在孤立、隔绝地看待运动文化物质层面的美，忽视运动学习之美，陷入对&体育课程美是什么&的追问中，看不到学生在教学美创造中的地位和作用等问题。

From kinesiological points of view, athletic sports is a means to the ends of PE., which means that PE is a kind of education which is accomplished by athletic sports.

迄今为止，虽然体育科学和体育教育发展较快，但其面对的四对矛盾仍然没有得到解决，甚至没有得到科学的阐释。

Objective: To develop a GC-MS method for the determination of pseudo-ephedrine in human plasma and study the mutative rules of the pharmacokinetic parameters of the pseudo-ephedrine in different compositions. Method: Orthogonal design was used to determine 8 compositions from Mahuang decoction.

中文摘要：目的：以君药效应成分伪麻黄碱(pseudo-ephedrine，PE)为指标，用GC-MS法考察不同配伍对PE药代学参数的影响规律，探索麻黄汤方中臣佐使药对君药人体内过程的影响。

The research result also showed that aminoalkylferrocene and new ferric alkyldithiocarbamate were effective initiators of the two kinds of biodegradation of the PE film; and new nickelous alkyldithiocarbamate could effectively control the initial process of its biodegradation; and PE film with them had better environmental degradability.

其中聚 酯、聚酰胺和聚氨酯等聚合物是通过H'或 OH_催化的水解降解引发过程，而聚乙烯、聚丙烯和聚苯乙烯等聚烯烃主要是通过光、热、氧和过渡金属离子催化的光一氧降解引发过程。但它们的最终可被生物吸收的产物都是低分子量的羧酸。

By use of titration analysis, the thesis investigated various factors such as isocyanate, PE molecular weight, reacting substance molecular ratio, reacting temperature and time etc. influencing upon prepolymerization step. It was found that 2, 4-tolulene diisocyanate and 4, 4'diphenylmethane diisocyanate is more rapidly reacted with PE600 than HDI. With PE molecular weight increasing, the reacting temperature or time should be raised or extended relevantly. Thus PE2000+2HDI pre-polymerization should be better carried out under some catalyst, for example, Triethylene diamine , Dibutyltin dilaurate and Tin octoate were used.

首先采用滴定分析方法对WRPU预聚反应的影响因素进行了研究：芳香族二异氰酸酯TDI、MDI比脂肪族二异氰酸酯HDI反应活性高，其中TDI在反应初始阶段的反应速率比MDI快，不过随着反应的进行，MDI比TDI反应速率加快，这主要是因为TDI分子中的两个-NCO反应活性差异大所致；二元醇分子量越大，反应速度越慢；聚醚二元醇比聚酯二元醇的反应速度快；当分子量超过2000的二元醇与HDI进行预聚反应时，需借助适当的催化剂来加快反应速度，从而使预聚反应能够顺利进行，分别选择DABCO、TOA和DBDTL三种催化剂进行催化反应，发现不同的催化剂，其催化效果相差较大。

The relationship between PE segment and speech skill, the influence of surgical technique on PE segment and the mechanism of the prevertebral buldging were discussed.

本文就咽食管段的形态与发音技能关系、手术对咽食管段形态的影响和椎前隆起的机制进行了讨论。

"Patients at high risk for developing PE or DVT may be prescribed statins prophylactically," she said."In these patients, regular use of statins could significantly reduce the incidence of PE and DVT."

Agarwal博士认为，&深静脉血栓形成或肺栓塞的高危患者可预防性使用他汀类药物，对于这些高危患者，常规使用他汀类药物能明显减少静脉血栓形成和肺栓塞的发病。&

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。