Macintosh found that naphtha - a volatile, oily liquid created in the distillation the aforementioned coal tar, as well as petroleum - could be used to waterproof fabrics.
麦金托什发现，石脑油——在蒸馏前面提到的煤焦油以及石油的过程中所产生的一种易挥发的油状液体——可用于防水织物。
Any of various thick, dark, sticky substances obtained from the distillation residue of coal tar, wood tar, or petroleum and used for waterproofing, roofing, caulking, and paving.
沥青，人造沥青：某种厚厚的、黑而粘的物质，由炭焦、木焦或石油的剩余物中提炼出来，用于防水、盖屋顶、填缝和铺路。
Two methods of distillation crystallization method and gas chromatography to determine the naphthalene content in coal tar oil were introduced.
介绍煤焦油中萘含量测定的两种方法：蒸馏结晶法和气相色谱法，对两种方法的优缺点及分析结果进行了对比。
Coal tar is a by-product of coking, namely tar distillation residue in distillation kettle black material.
煤焦沥青Coal tar：煤焦沥青是炼焦的副产品，即焦油蒸馏后残留在蒸馏釜内的黑色物质。
The project takes pyrogenic dry distillation gas of soft coal in continuous retort as the fuel gas and produces ferroalloy coke and crude tar oil.
本项目是以烟煤在连续炭化炉中热解的干馏煤气作为城市燃气，同时付产铁合金焦和粗焦油。
The furnace of coal gas calorific value high thoroughly dry distillation under section gas excluding, tar.
煤炭经炉内彻底干馏，煤气热值高，下段煤气不含焦油。
The furnace of coal gas calorific value high thoroughly dry distillation under section gas excluding, tar.
煤炭经炉内彻底干馏，煤气热值高，下段煤气不含焦油。
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