Epoxy or plastic liming may be cast into the concrete pipe during manufacture;or bitumastic or coal tar epoxy may be painted on the concrete pipe surfaces after installation.
可以在制造混凝土管道时将环氧和塑胶衬里浇筑在里面，或在安装后用沥青砂浆或煤焦油屠宰混凝土管的表面。
| 单词 | coal tars |
| 例句 |
英语例句库
Epoxy or plastic liming may be cast into the concrete pipe during manufacture;or bitumastic or coal tar epoxy may be painted on the concrete pipe surfaces after installation. 可以在制造混凝土管道时将环氧和塑胶衬里浇筑在里面，或在安装后用沥青砂浆或煤焦油屠宰混凝土管的表面。 声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
原声例句
透视百科科技类 Most other pavements use coal tar. 大都用煤焦油。 雅思阅读真题 He was attempting to manufacture quinine from aniline, an inexpensive and readily available coal tar waste product. 他试图用苯胺制造奎宁，苯胺是一种廉价且容易获得的煤焦油废料。 TED-Ed（视频版） In 1907 a chemist combined phenol— a waste product of coal tar— and formaldehyde, creating a hardy new polymer called bakelite. 1907 年， 一位化学家将苯酚（一种煤焦油的废品）和甲醛结合在一起，创造出一种名为电木的坚固新型聚合物。 《卫报》（文章版） This pattern was set in 1879 when a chemist called Constantin Fahlberg was working with coal tar derivatives at Johns Hopkins University in the hope of discovering a new food preservative. 这一规律最早可追溯到 1879 年，当时一位名叫康斯坦丁·法尔贝格的化学家在约翰·霍普金斯大学研究煤焦油衍生物，希望发现一种新的食品防腐剂。 《卫报》（文章版） The word " spice" cleverly hid the industrial origins of saccharin and the fact that it was made from coal tar: a sticky dark liquid that is a byproduct of burning coal. “香料” 这个词巧妙地隐藏了糖精的工业起源和它是由煤焦油制成的事实：煤焦油是一种粘稠的黑色液体，是燃煤的副产品。 处女地（下） A whiff of coal, tar, and tallow was borne along from the yard, but the noise and rattling in the factory was fainter than usual at that time of day. 一股煤、焦油和牛油的味道从院子里飘了出来，但工厂里的噪音和嘎嘎作响比白天的那个时候要弱。 |
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