Originally: the carbonaceous material in oil shale that gives rise to crude oil on distillation. In later use extended to denote any organic…
| 单词 | θ5632 | 
| 释义 | the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > 			[noun]		 > kerogen (1)		 kerogen1906 Originally: the carbonaceous material in oil shale that gives rise to crude oil on distillation. In later use extended to denote any organic… | 
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