A crystalline compound, C18H 18, derived from pine tar, fossil resins, and tar oils.
一种结晶化合物，C18 H18，从由松焦油、化石树脂及焦油中提取。
Experiments of tar cracking on char with toluene as a model compound were performed in an electrically heated tubular flow reactor.
在小型固定床反应器上，以甲苯为模型化合物对生物质焦油在热解焦上的催化裂解反应进行了研究。
An organic compound, C10H7CH3, obtained from coal tar in two isomeric forms, one a liquid, the other a solid.
甲基苯一种有机合成物，c10h7ch3，从煤焦油中提取，有两种。
A white crystalline organic compound, C9H 9n, having a strong fecal odor, found naturally in feces, beets, and coal tar and used as a fixative in the manufacture of perfume.
粪臭素：一种白色结晶有机化合物，C9H9n，有强烈臭味，自然存在于粪便、甜菜根和煤焦油中，作为生产香料的固定剂。
Objective: To observe the effect of compound Zijin Shuang for external use on experimental acne vulgaris in rabbit model made by coal tar.
目的：采用煤焦油制造实验痤疮兔模型，观察复方紫金霜对实验性痤疮的治疗作用。
The low temperature coal-tar includes many precious compound, but at the present it is often selled as the liquid fuel in the market, this creates enormous waste to the resources.
低温煤焦油中含有许多珍贵化合物，但目前多作为液体燃料在市场上销售，这是对资源的极大浪费。
This paper gave an example of anatomy and study of unknown compound in black tar.
本文列举了黑色焦油中未知物的剖析研究实例。
This paper gave an example of anatomy and study of unknown compound in black tar.
本文列举了黑色焦油中未知物的剖析研究实例。
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