英汉例句

• medium and deep hole casting blast sublevel open stoping method is suggested and its suitability to the stope ground pressure is expounded.

  提出了中深孔抛掷爆破分段空场法，并阐明其对采场地压的适应性。

• the experimental study of sublevel open stoping with tail filling and pre controlling of roof was introduced.

  介绍了河东金矿预控顶分段空场尾砂充填采矿法试验研究。

• experienced advice and explorations on the main problems encountered in practical operations with the open stoping method are stated in this paper.

  随着发现的小矿体渐多，空场采矿法越来越显示了它的重要性。本文对空场采矿法应用中的几个主要问题作一概略分析。

• to fully exploit the resources, qingtonggou mercury-antimony mine adopts the sublevel open stoping with delayed filling to recover the remanent ore-body at the medium stage of 550~600 m.

  青铜沟汞锑矿为充分开采井下资源，选择采用分段空场嗣后充填采矿法回采550~600m中段的部分残矿体。

• so far with the open stoping method, total annual output of uranium ores accounts for around 30 percent of uranium ore mined from underground mines in our country.

  如全面采矿法、房柱采矿法、浅眼留矿法以及留矿空场法等，均属此类。现用这些方法采出的矿石量约占地下开采总产量的30％左右。

• according to the occurrence of this orebody, a narrow-sublevel open stoping mining method was brought out. using this method, the resources can be utilized effectively.

  根据该矿体赋存状态，推荐采用窄分段分采空场法，可最大限度减少贫化、损失，提高资源的利用率。