大煤的英文

great coal

• 大:    big; large
• 煤:    coal
• 大煤块:    judd

例句与用法

1. High - resolution coal - bearing sequence analysis of jurassic section in dameigou , chaidamu basin
   柴达木盆地大煤沟侏罗系剖面高分辨率含煤层序分析
2. Analyzing to the phenomenon of underground pressure and the stress of surrounding rock in roadway protecting pillar
   大煤柱护巷矿压显现规律及围岩应力实测分析
3. Numerical simulation on roadway protected by wide coal pillar in super - wide and isolated island fully mechanized top - coal caving face
   综放面大煤柱护巷的数值模拟