| 单词 | coal tar |
| 释义 | coal tar (once / 25418 pages) n WORD FAMILY coal tar: coal tars USAGE EXAMPLESThese synthetic phenols are derived from coal tar, benzene and petroleum. US News(Dec 30, 2015) Bladder cancer, which can be set in motion by coal tar, metalworking fluids, and other workplace toxics, usually appears 15 to 40 years later. Slate(Nov 05, 2015) The work is part of the effort to remove coal tar that oozed into the river decades ago from SCE&G; power plants. Washington Times(Sep 09, 2015) n a tar formed from distillation of bituminous coal; coal tar can be further distilled to give various aromatic compounds Hyper pitch, tar any of various dark heavy viscid substances obtained as a residue |
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