煤焦油工业 coal tar industry; coal-tar indrstry; coal-tar industry; coalite industry 煤焦油罐 coalite tar tank .
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coal-tar industry 煤焦油工业
Coal tar processing is one of the most important areas of coal chemical technology and a main intermediate ring binding coal mining, metallurgy and chemical industry.
煤焦油加工是煤化工的重要内容之一，与煤炭、冶金和化工等行业密切相关，在世界范围内已有相当规模。
Fluorene is an important material in organic chemical industry. It is usually extracted from the washing oil or anthracene oil distillate of coal tar.
芴是重要的有机化工原料，多从煤焦油的洗油馏份中提出，也可从蒽油中提出。
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。
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