查询词典 pitch coal

Through different preparation technology, needle coke was prepared with coal-tar pitch under the effect of magnetic field and ultrasonic capitation.

在不同制备工艺下，用煤焦油沥青在磁场诱导和超声波空化条件下合成了针状焦。

"After destructive distillation, coal leaves a solid residue, coke, while, coal-tar and pitch are collected as a distillate, and coal-gas is collected in gasometer"

煤干馏后剩下的固体残渣焦炭，而煤焦油和沥青则作为馏出物收集起来，煤气则收集于储气器中

The study on co-carbonization of coal tar pitch and lean coal with different blending ratios was conducted.

摘 要：进行了不同配比的煤沥青和贫煤的共炭化研究，研究表明，煤沥青与贫煤共炭化时的相互作用是物理融合和化学相互作用的共同作用。

Ground subsidence caused by underground coal mining is a space-time process. Coal seam pitch is one of the most important factor which determine movement and failure forms of overlying rock and the level of ground movement and deformation.

地下煤层采出后引起的地表沉陷是一个时间和空间过程，煤系地层倾角是决定上覆岩层的移动和破坏形式及地表移动与变形程度的重要因素之一。

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%。

In view of domestic coal tar based pitch and actual existing problems,describes the modified pitch process and technique in about ten commercial units which were developed by ACRE,constructed and commissioned in China recently.

根据国内煤焦油沥青产量和存在的现实问题，介绍了由鞍山焦化耐火材料设计研究院开发并投产的近十套工业装置的改质沥青工艺技术。

Tantalum-containing pitch as a carbon precursor was synthesized by an in situ liquid phase reaction between coal tar pitch and tantalum pentachloride.

以煤沥青为原料，氯化钽为钽源，通过化学反应制备了含钽沥青前驱体。

In scenes televised nationwide, rescuers cried as the soot-covered men - stuck underground since Sunday, March 28 - were brought out, some barefoot and others with cloth-covered eyes to protect them from the light after days in pitch dark of the Wangjialing Coal Mine in Shanxi Province, the heart of China's coal country.

面向全国转播的电视镜头显示，当这些一身乌黑的矿工被抬出地面时，救援人员痛哭流涕。矿工们是在3月28日被困的，地点位于中国产煤大省山西的王家岭煤矿。他们被抬出来时，一些人赤着脚，其他人的眼睛用布罩遮住，防止他们在漆黑之中呆了多日后受到光线的伤害。

The surface morphologies of coal pitch spheres were characterized by scanning electron microscope and polarized light microscope. The effects of naphthalene content on the softening point of the modulated pitch, balling temperature on the spheres morphologies and the max mass ratio of pitch to the liquor were investigated.

使用扫描电子显微镜和偏光显微镜对沥青球的表面形貌进行表征，探讨了减黏剂萘含量对调制沥青软化点的影响，成球温度对球形貌的影响以及沥青／水相的最大质量比。

An experimental study of 300 mice exposed to pitch(3 gm.dissolved in 10 ml.of 80% benzene solution)obtained from 4 different sources,name- ly Anshan coal-tar pitch,Yu-men petroleum pitch,Dairen petroleum pitch or commonly known as Russian crude oil and the Asia Oil Company, USA,was carried out over a period of 350 days.

三根据四种来源不同的沥青所引起皮肤良性与恶性病变的发病率和潜伏期的长短，可将其毒性的强弱顺序排列如下：(1)鞍山煤焦油沥青，(2)美国亚细亚公司石油沥青，(3)大连石油沥青，(4)西北玉门石油沥青。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。