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。
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。
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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