乙烯

We are building an ethylene plant with an annual capacity of 300,000 metric tons.6 H.

我们正在建设一座年产三十万吨的乙烯工厂。

This product is a polyvinyl chloride and vinyl acetate plasticizer.

本品是聚氯乙烯和醋酸乙烯的增塑剂。

Can be used as base metal coating materials used vinyl resin system by plastisol or solution, polyester or acrylic, etc.

可以作为金属涂布的底基材料使用的树脂系统有乙烯、聚酯或丙烯酸等。

The main results were as follows:An appropriate concentration of ethephon sprayed on leaves of peanut made stems and branchs height shorter,but more branches;The fresh weight and dry weight per unit of leaf area and per plant increased;It optimized some physiological and biochemical characteristics in the leaves.It was showed that the ethephon increased obviously the contents of protein and chlorophyll and the activity of SOD and POD in the leaves,and improved the rates of photosynthesis and transpiration of the leaves,and increased the activity of the roots,but decreased the content of MDA in the leaves;It improved the quantity of pods,the percentage of plumy pods and the peanut yield.

结果表明：喷施适宜浓度的乙烯利可使植株相对矮化，抑制花生地上部分的生长，使主茎和分枝长比对照短，但分枝数较多；提高单位叶面积鲜重、干重以及植株鲜重、干重；优化花生植株的生理生化特性，表现为显著提高了花生叶片的蛋白质含量和叶绿素含量及SOD和POD活性，增强了花生叶片的光合速率和蒸腾速率，增强了主根活力，降低了花生叶片的丙二醛和可溶性糖含量；提高植株的单株结荚数、饱果率和产量。

The other is known as poly(3,4-ethylenedioxythiophene).

另一种则是聚合物（3、4-亚甲基二氧乙烯噻吩）。

Iron catalyst could polymerize butadiene into high vinyl polybutadiene poly(Bd with 1,2-units more than 90%.

铁系催化剂是催化丁二烯聚合生成高乙烯基聚丁二烯的一种较好的催化剂，所生成聚合物1，2-结构的含量可在90%左右。

Keywords polyoxymethylene;polytetrafluoroethylene;kaolin;friction and wear

聚甲醛；聚四氟乙烯；高岭土；摩擦磨损

The chemical and physical characteristics and applications of polytetrafluoroethylene fiber are introduced.

介绍了聚四氟乙烯的化学、物理等特性及其应用。

The main part is made from expanded polytetrafluoroethylene.

主要部分，是由膨体聚四氟乙烯。

Polytetrafluoroethylene has many advantages for using in corrosive circumstances because of its special molecule structures and material properties.

聚四氟乙烯由于特有的分子结构和材料性能，被冠以"塑料王"的美誉，在众多腐蚀环境中得到应用。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。