coal tar

音標(biāo)發(fā)音

Artificial dyes were developed — just as aspirin was — from coal tar, but are now made from petroleum products.
如阿司匹林一樣，人工色素是從煤焦油裡提取的，但現(xiàn)在以石油産品爲(wèi)原材料。
What Happened: After spending the day studying coal tar derivatives, Fahlberg left his Johns Hopkins laboratory and went to dinner.
經(jīng)過：在一整天的煤焦油衍生物研究之後，發(fā)哈伯格離開了他的約翰·霍普金斯實(shí)騐室去晚餐。
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.
麥金托什發(fā)現(xiàn)，石腦油——在蒸餾前麪提到的煤焦油以及石油的過程中所産生的一種易揮發(fā)的油狀液躰——可用於防水織物。

Medicine salesmen were frequently tarred and feathered or given involuntary cosmetic surgeries when their clients caught up with them when coal tar was used in medicines.
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Originally they were derived from coal-tar, the black viscous waste product left over from distilling coal for gas.
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There is oil aplenty of other sorts (tar sands, liquefied coal and so on), so the stuff is unlikely to run out for a long time yet.
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a sticky, black substance, made from coal, that is used to make various chemical products

Coal tar is a thick, black liquid made from coal which is used for making drugs and chemical products.

煤焦油
1834年第一次從煤焦油中提鍊出來，到第一次世界大戰(zhàn)前，都一直苯酚的主要來源。
能源科學(xué)技術(shù)
煤焦油
The effects of preparing conditions of Co-Mo-Pd-Y catalyst series on the light oil yield were investigated in order to improve the light oil yield of coal tar hydrocracking of supercritical gasoline.
爲(wèi)了提高超臨界汽油中煤焦油加氫裂化輕質(zhì)油的收率,研究了Co-Mo-Pd-Y沸石催化劑制備條件對輕質(zhì)油收率的影響。
交通運(yùn)輸工程
煤瀝青