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- When long wall mining to the dip in fully-mechanized coal winning working face is inclined area,we may can't use existing drift draw off water. 当倾斜长壁开采的综放工作面初采范围处于向斜构造区,造成初采放水无法利用已有巷道形成自流放水,必须考虑动力排水或其他的放水方式。
- long wall mining method along dip 倾斜长壁采煤法
- long wall mining method along strike 走向长壁采煤法
- The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of short wall mining. 根据短壁开采条件下保护煤柱的布设特点,建立由保护煤柱支承的关键层力学分析模型。
- In view of special conditions in quarry the paper takes Gujingxiang side-hill quarry as an example,introducing cutting wall mining method based on mining with steeper working slope. 结合露天采石场的具体情况,以古井祥业石场山坡型露天矿为例,介绍了基于陡帮开采的切壁开采方法。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
- Cutting wall mining method for side-hill quarry 山坡露天石矿切壁开采方法
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- The beggar spun a long yarn about his misfortunes. 那个乞丐编造了一大篇自己如何遭遇不幸的故事。
- How long will our food supplies hold out? 我们的储粮还能维持多久?
- It was a long trudge up the hill. 那段上山的路很难走。
- Mr Jones has a long history of heart trouble. 琼斯先生有长期的心脏病史。
- Room and Pillar Short wall Mining in Shendong Hala Gou Coal Mine 神东哈拉沟煤矿房柱式短壁机械化采煤法
- Cream cakes are no long a luxury. 奶油蛋糕再也不是奢侈品了。
- It took a long while to do the work. 做这个工作花了许多时间。
- Application of Steep Wall Mining Technology in Zijinshan Gold Mine 陡帮开采工艺在紫金山金矿的应用
- Between ourselves, that young man's hair is much too long. 就咱俩之间说说，那小伙子的头发实在是太长了。
- It may take a long time to find a solution to the problem. 也许要花很长时间才能找到解决这个问题的办法。
- It was very thoughtless of you to keep her waiting so long. 你让她等那么久也太不体谅人了。
