丁二烯

A hollow metal rod with a heavy rubber tip or tips that is wielded and twirled by a drum major or drum majorette.

金属指挥棒：鼓手挥舞使用的，顶端是厚橡皮的中空的金属棒。合成橡胶是丁二烯(75%)和苯乙烯(25%)的共聚物。

On the basis of the information of experimental study, models of comonomer conversion, and the molecular weight distribution under the condition of the maximum mixednees in a continuous stirred tank reactor were established.

在实验研究的基础上，建立了连续搅拌釜式反应器中丁二烯／苯乙烯阴离子溶液共聚合数学模型并进行了模型的参数估计和模拟计算。

We also have a complete line of neoprene supports.

我们也有全套的氯丁二烯橡胶生产线。

Neoprene, nylon and elastic combine to make this is an ankle support that is actually comfortable to wear.

氯丁二烯橡胶，尼龙和弹性结合材料使得这种脚踝护腕穿的非常舒适。

Nitrile is a copolymer of butadiene and acrylonitrile.

丁钠橡胶是丁二烯和丙烯腈的共聚物。

This effect is probably related to the interaction between amorphous PE in PP copolymer and PE phase in mPE and EPDM. T〓 of mPE decreases with increasing the octene content, and maximum damping of the glass transition relaxation increases.

PP／SEBS共混物中SEBS的玻璃化温度随SEBS含量的增加而降低，表明共聚PP中的PE相对SEBS中丁二烯嵌段的玻璃化松弛转变影响很小。mPE中的辛烯含量越高，其低温损耗峰的强度越高，玻璃化温度越低，低温韧性越好。

Studies on the reactions of isomerized products of butaduene and isoprene iron complexes with triphenyl phosphine and triphenyl phosphite

丁二烯-和异戊二烯二羰基铁配合物的异构化产物与三苯膦和亚磷酸三苯酯的反应研究

The control scheme of polymerize r is mainly described.

介绍了聚丁二烯胶乳聚合反应控制系统的主要设计原则，构成及其特点。

This article reviewed synthetic technology,structure,properties and applications of star-shaped LCBR,including current status on research,production and developments.

本文较详细地介绍了星形低顺式聚丁二烯的合成工艺、结构、性能和用途，并对国内外星形LCBR的研究和生产情况及其发展动态进行了简单的概括。

The material can be used as ultraviolet light absorbent as polypropylene, polycarbonate, vinyl cyanide-butadiene styrol copolymer and polyurethane.

该超分子插层结构材料可作为紫外光吸收剂用作如聚丙烯、聚碳酸酯、丙烯氰-丁二烯-苯乙烯共聚物以及聚氨酯等易光氧降解树脂的耐光老化添加剂。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。