However, the initial working at this mine did not experience strata control problem because the void remained, relatively, small resulting less disturbance in the intact overlying strata.
然而，在这个矿井的初步工作没有岩层控制的问题，因为经验的空白依然存在，相对而言，造成不小的扰动完整的覆层。
The oxygen transfer coefficient is bigger relatively because of its big void rate and specific surface area.
该填料因具有较大孔隙率和比表面积且结构呈针状，对大气泡可有效切割，氧传递系数较大。
The oxygen transfer coefficient is bigger relatively because of its big void rate and specific surface area.
该填料因具有较大孔隙率和比表面积且结构呈针状，对大气泡可有效切割，氧传递系数较大。
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