A colorless organic liquid, C 9 H 8 , obtained from coal tar and used in preparing synthetic resins.

Several graphite samples were made from calcined coke and coal tar by hot pressing.

用煅烧石油焦和煤焦油为基本原料,采用热压工艺制备了几种石墨材料.

Methods of modified coal tar pitch for preparing high specific surface area activated carbon were studied.

研究了用于制备高比表面积活性炭的改质煤沥青的调制方法.

Coal tar has a strong smell and can stain clothing.

煤焦油有很强烈的气味,并且会染污衣服.

The behavior of pyrolysis condensation of coal-tar pitch during the thermal polymerization modification is described.

简要介绍改质沥青在炭素制品生产中的重要作用以及生产改质沥青的二种工艺.

Carbon foams were prepared from coal tar pitch, petroleum mesophase pitch, and AR pitch.

分别以煤沥青 、 石油中间相沥青和AR沥青为前驱体制备炭泡沫材料.

The process of coal tar steelmaking in special steel open hearth is described in this paper.

介绍了特钢平炉煤焦油炼钢工艺.

A pitch mesophase can be prepared from petroleum pitch and coal tar pitch.

从石油沥青和煤沥青中制取沥青中间相物质.

The results concluded that coal tar colors were not detected in fifty samples.

本调查系本局之比较检验,曾于八十七年三月三日发布新闻在案.

Some of the commonly specified coatings include epoxies, coal tar derivatives and sacrificial zinc primers.

通常采用的涂层包括:环氧树脂, 煤焦油衍生物和无锌底漆.

Our company ranks first in the output of coal tar.

我公司的煤黑油产量居全省之首.

The chemist reported on his experiments with coal tar.

化学家提出他实验沥青的报告.

Mesocarbon microbeads ( MCMB ) were prepared from coal tar pitch containing original QI by thermal condensation.

以含有原生QI的煤沥青为原料,采用热缩聚方法制备出中间相炭微球.

Coal tar has been a historic contribution to modern organic chemical industry.

煤焦油曾为近代有机化工作出了历史性贡献.

Coal tar epoxy. Part A and Part B mixed prior to application.

环氧煤焦油沥青漆. 使用前请将A、B组分搅拌均匀.

It's based on a blend of high quality coal tar and vinyl resin. Physically drying.

一种高质量焦油沥青和乙烯基树脂的混合物, 属物理干燥型.

Besides, the development mode of coal tar enterprises was also discussed.

此外还讨论了煤焦油加工企业的发展模式.

He was our coal-black daddy of whom we were afraid.

他成了我们众人畏惧的黑炭阿爹.

Township enterprises mainly in coal mining.

乡镇企业以采煤为主.

Coal mining has always been a dangerous occupation.

采煤向来是一种危险职业.

CHAPTER V PROTECTION OF COAL MINING AREAS.

第五章煤矿矿区保护.