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- snick shaft bottom 削球式井壁底
- The analyzed the features and difficulties of the support for goaf left by small coal mine in the mine shaft bottom of Shuguang Mine. 分析了曙光煤矿井底车场小煤窑遗留采空区支护的特点和难度,提出采用注浆加固、高强度锚杆、再配合预应力锚索支护方案。
- Keywords special thick alluvium;drilling shaft bottom;snick;optimally central angle;model test; 特厚表土层;钻井井壁底;削球式;最佳圆心角;模型试验;
- According to practice experience expounds that in outsize mine the capital control lead line of shaft bottom should be 5 second rank,and builded onetme before putting into production. 结合自身的实践经验阐述了特大型矿井井下基本控制导线的等级应为5”级,应在矿井投产时一次建成。
- Keywords special thick alluvium;drilling shaft bottom;semiellipse rotation type;hemisphere and snick type;optimizing scheme; 超深表土;钻井井壁底;半椭圆回转式井壁底;削球式井壁底;方案优化;
- cleaning main shaft bottom falled coal system 井底清理撒煤系统
- They sent the enemy ship to the bottom of the sea. 他们把敌舰击沉。
- The child was sitting on the bottom stair. 那孩子正坐在楼梯最下面的一级上。
- I intend to get to the bottom of it. 这件事我打算寻根究底。
- He was always bottom of the class in maths. 他的数学成绩在班上总是垫底。
- The dregs have settled at the bottom of the bottle. 渣滓都沉到瓶底了。
- A slot for a key in the hub or shaft of a wheel. 键槽轮子的毂或轴里的键的沟槽
- I fell right to the bottom of the stairs. 我从楼梯上一直摔到楼梯下面。
- He heard a bolt snick as it was pulled back. 他听到枪栓往后扳的咔嗒声。
- The police found a body at the bottom of the lake. 警方在湖底发现了一具尸体。
- Flexibility, as in the shaft of a golf club. 弹性，韧性柔韧性，易变性，如高尔夫球棒的柄
- His bottom waggle in a funny way when he walk. 他走路时臀部扭来扭去，很可笑。
- The bottom of the boat was rusty. 船底生锈了。
- There is a pair of scissors in the bottom drawer. 最底下的抽屉里有把剪刀。
- Prices have reached rock bottom. 价格已经到了最低点。
