richen的中文翻译

richen

英[ˈrɪtʃən] 美[ˈrɪtʃən]

2. The porosity and permeability of coal-bearing strata have important influence to the exhaust and mining of coal bed gas, but the production of coal bed gas is precondition of its richen.: 煤系地层孔隙性和渗透率对煤层气的抽放、排采具有重要影响，但煤层气的生成却是其富集的先决条件。

3. The porosity and permeability of coal-bearing strata have important influence to the exhaust and mining of coal bed gas, but the production of coal bed gas is precondition of its richen.: 煤系地层孔隙性和渗透率对煤层气的抽放、排采具有重要影响，但煤层气的生成却是其富集的先决条件。