乙烯的

During the Polyvinyl Alcohol producion, the product cannot be polymerized by the monomer directly. Generally, it can be obtained by alcoholysis of poly vinyl acetate in the solution of methanol.

在聚乙烯醇生产过程中，因产品不能由其单体直接聚合得到，通常采用聚醋酸乙烯在甲醇中醇解得到，该过程副产大量的醋酸甲酯。

A new process of liquid phase alkylation of benzene with ethylene was developed.

开发了苯和乙烯液相烷基化反应的新工艺。

The influences of precooling methods on the respiration intensity, formation of ethene and the quality of 'Fraiar' and 'Angeleno' plum fruit were investigated.

以'黑宝石'和'安哥诺'李果实为试验材料，研究了冰水和风预冷对李果实呼吸强度、乙烯生成量及其贮藏品质变化的影响。

Using the Fraiar and Angeleno plum fruit as trial materials and physiological-biochemical analysis as experimental methods, the influences of varied conditions of decompression storage and calcium treatments of different consistency on the fruit quality, respiration intension and ethylene production rate, MDA content, protective enzyme activity and storage effect of plum fruits were studied.

以黑宝石和安哥诺李果实为试验材料，采用生理生化分析方法，研究了不同减压贮藏条件和不同浓度钙处理对李果实品质、呼吸强度和乙烯释放量、MDA含量、保护酶活性及贮藏效果的影响，探讨了李果实减压及浸钙贮藏保鲜机理，结果表明： 1。

A mechanism involved in the second [5 + 1] annulation step, includinga formal [5 + 1] annulation and accompanied chlorovinylation, chloroformylation,amination and aromatization reactions, is proposed.

并对第二步反应机理进行了推测，其中包括了一个一般的[5 + 1]加成反应及伴随此加成反应而发生的氯化乙烯化，氯化甲酰化，氨化和芳构化反应。

Methods From June 2001 to July 2002,8 patients with brachiocephalic arteritis received left iliac-left carotid arterial bypass with PTFE graft.

2 0 0 1年6月至2 0 0 2年7月，对8例头臂型大动脉炎病人，通过左髂动脉-左颈动脉聚四氟乙烯人造血管旁路术治疗颈动脉闭塞所致的脑缺血症状。

Benda Plastic Manufacturer of Nanhai,Foshan City,Guangdong Province,established in 1990 and later moved to Nanhai district,is a large enterprise specializhing in manfacture of plastic tubes,rods,ball valves and pipings,Our main end products include PTFE,PVC,PP,PE,Nylon and ABS tubes,valves and pipings and rods in more than 1000 types.

广东省佛山市南海奔达塑胶制品厂，创办于1990年（即原佛山市奔达塑胶有限公司，现迁往南海区）是一家专业生产塑胶管、棒材、阀门、管件的大型企业。主要产品材料有聚四氟乙烯、聚氯乙烯、聚丙烯、聚乙烯、尼龙、ABS等，品种规格有塑胶管、棒材、阀门、管件等几大系列，一千多个品种。

The current status of the study on biosynthesis, response and regulation of ethylene are reviewed.

本文综述乙烯在切花衰老过程中调控作用的研究现状。

Many of the raw materials used in the petrochemical industry are unsaturated hydrocarbons, such as ethylene, propylene, butene and butadiene.

在石油化学工业中所用的许多原料是不饱和烃类，如乙烯、丙烯、丁烯和丁二烯。

It is noted to that this binuclear nickel complex is able to catalyze ethylene polymerization as single-component catalyst.

值得注意的是，该化合物可以作为单组份催化剂催化乙烯聚合。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新