煤系是含煤岩系的简称，也称含煤地层、含煤构造。是指在一定地质时期连续沉积形成的一套含有煤层并具有成因联系的沉积岩系。
... 金属非金属地下矿山 metal and nonmetal underground mines 煤系 coal-derived 互层 interbed ...
基于6个网页-相关网页
... coal-bearing region || 聚煤区，含煤区 coal-bearing series || 煤系 coal-bearing strata || 含煤地层 ...
基于6个网页-相关网页
输煤系统 coal handling system ; coal conveying system ; feeding coal system
煤系沥青 carbobitumen
煤系气 gas-bearing coal seams ; Gas of coal measures ; coal-measure gas
煤系盖层 overlying strata of coal measures
含煤系数 coal bearing ratio ; coal-bearing coefficient
煤系高岭土 coal series kaolinite ; coal kaolinite
煤系地层 coal measure strata ; strata contained coal
流化床燃煤系统 fluidized bed coal system
运煤系统容量 capaoity of coal handling system
·2,447,543篇论文数据，部分数据来源于NoteExpress
这一结论在西北地区侏罗纪煤系含油气盆地具有普遍性。
This is a common conclusion for the Jurassic coal bearing basins in the Northwest China.
兖州煤田的上侏罗统红层直接覆盖于二叠、石炭系煤系地层之上。
Upper Jurassic red bed cover directly on coal measure strata of Permian and Carboniferous system in Yanzhou coal field.
煤系黄铁矿在化学计量组成中含有碳的矿物，其表面的含碳量均大于40%。
In terms of chemical computation composition, in minerals with carbon, its surface carbon content is more than 40%.
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