coal measures

• n. 煤系

coal measures的用法和样例：

例句

用作名词 (n.)

1. The processing techniques of coal series kaolinite are introduced.
   介绍了煤系高岭土的几种深加工利用方法。
2. Lower-Middle fresh lacustrine shale and coal measures with huge thickness have been found in the petroleum system of the northern Qaidam basin.
   柴达木盆地北缘侏罗系含油气系统具有巨厚的下侏罗统湖相泥岩和中侏罗统煤系地层。