您要查找的是不是：
- C-P煤系C-P coal measures
- 系system
- 煤coal
- 煤系coal series
- 煤系巖相coal-measure facies
- 煤系蓋層overlying strata of coal measures
- 煤系氣coal measure gas
- 煤系土coal measure soil
- 非煤系non-coal-series
- 煤系單位coal-measures unit
- 煤系地層coal measure strata
- 煤系旋回coal measures unit
- 隱伏煤系buried coal series
- 煤系源巖coal-source rocks
- 煤系泥巖coaly mudstone
- 石炭煤系Coal Measures
- 測水煤系measuring water coal system
- 煤系巖石Coal measures rocks
- 湖沼煤系limnic coal deposits
- 近海煤系paralic coal deposits
