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- Concrete cutoff wall built by multiple drill bits 多头钻槽法建造混凝土防渗墙
- All its assets is over 3 millon Yuan,RZ series of soft-rock drilling shaft are patent production of Ministry of Coal. 生产的RZ系列软岩钻杆是国家煤炭部通过技术鉴定的专利产品。
- An experimental study of mechanical characteristics of drilled shaft was carried out by resemble material. 用相似材料对钻井井壁底的力学特性进行了实验研究。
- Study on the New-type Multiple Drill Bit 新型复合钻头研究
- Based on the test results, the design method of vertical bearing capacity of the retractable drilling shaft lining was obtained. 由此提出了可缩性钻井井壁竖向承载力的设计方法。
- Huainan Banji coal mine introduces precasting in Main Shaft and ventilation shaft,and drilling shaft lining is precast construction in ground. 淮南板集煤矿主井与风井采用钻井法凿井,钻井井壁在地面预制施工。
- Aiming at the fractured mechanism of mine shaft lining under the condition of stratum subsiding, a new type of retractable drilling shaft lining structure was proposed. 针对地层沉降条件下煤矿立井井壁的破坏机理,提出了一种新型可缩性钻井井壁结构。
- A shaft on which a working tool is mounted, as in a dental drill. 心轴用于安装工具的蕊棒，如牙钻蕊棒
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
- You'd better set a goal before you start the drill. 练习开始前，你最好设定一个目标。
- After a long drill he told the squad to fall out. 操练了好半天之后，他让这个班解散了。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- This drill can bore through rock. 这台钻机能钻透岩石。
- He is the person with multiple injuries. 他就是那个多处受伤的人。
- shaft sinker 井筒掘进工
- The dentist's drill made a lot of noise. 牙钻发出很大的噪音。
- multiple-drill shaft sinker 多钻凿井机
- Friendship multiple joy and divide grieve. 朋友之间，欢乐同享，苦难同当。
- What's the drill for claiming expenses? 费用报销的手续，是怎样的?
