常見例句

雙語例句

• The laboratory measurement of coal permeability of in Xinji mining area is conducted to research effective porosity underthesurrounding limited pressure and dynamic change trend.
  采用新集礦區(qū)煤樣進行實驗室條件下孔滲性測試分析，研究該區(qū)煤在不同圍限壓力下有效孔隙度和氣體滲透率的動態(tài)變化趨勢；
返回 effective dynamic permeability