查询词典 pitch-blackness

It was considered that the rubber,as a hydrogen donor,might take part in the modification of coal tar pitch and formed a new asphaltine.

橡胶在改质过程中作为供氢媒介参与筑路油的热解反应，正是煤沥青的受氢作用改善了筑路油的质量。

Coal tar and coal tar pitch are usually thick, black, or dark-brown liquids or semisolids with a smoky odor.

煤焦油和煤焦油沥青通常厚，黑色或深褐色的液体或semisolids了黑烟和90.4%。

For settling these problems, the plants producing coal tar pitch have done a great deal of works in technical development and introduction, produce development and analysis improvements.

针对这些问题，我国煤沥青生产厂在技术开发、引进、产品开发、完善检验手段等方面开展了大量工作。

Coal tar pitch ; rheological properties ; activation energy ; free volume

煤沥青；流变性能；活化能；自由体积

Keywords: Impregnation; coal tar pitch; carbon yield

要害词：浸渍；煤沥青；产碳率

A series of Sn/C composites was prepared by thermal condensation of coal tar pitch and tributyltin chloride with different proportions.

以煤焦油沥青为碳源、三丁基氯化锡为锡源，采用压力下聚合手段原位合成出Sn/C复合材料，并对它的电化学性能进行了研究。

The reason of the higher value of quinoline insoluble material in coal pitch is analyzed through the determination theory of methyl benzene insoluble material.

针对在试验过程中发现煤沥青中喹啉不溶物分析结果偏高的现象，根据煤沥青中甲苯不溶物的测定原理，找到造成这种现象的原因，然后从不同的角度进行试验，最终摸索出一套分析煤沥青中喹啉不溶物含量的简单、经济、可行的方法。

You can also use it to change the pitch in your voice.

你还可以用它来改变你说话的音调。

No one is safe in the pitch.

在场上没有人是安全的。

If he were not on the pitch, he would be in the stands.

如果他没有在球场上，那么他也会在观众席里。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。