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- Establishment of Lateral Vibration Dynamic Model of Roller Cone Rock Bit and Its Solution 牙轮钻头横向振动模型的建立及求解
- cone rock bit 锥形凿岩钻头
- Cone type roller bearing rock bit 滚柱轴承锥形牙轮钻头
- Effect of Machining Process on Rock Bit Cone Break 机加工工艺对钻头牙轮开裂的影响
- The paper introduced the successful application of high bench caving method of using deep hole roller rock bit into the practice of solving the complex goaf area,a stuff problem of this kind. 采用深孔牙轮钻机、利用高台阶崩落法成功地处理了复合采空区,解决了复合采空区处理难的问题,使技术人员在熟练浅采、深采空区处理的情况下,又探索出复合采空区的处理方法。
- He dash the glass bowl to bit on a rock. 他对著石块把玻璃碗砸得粉碎。
- Rod thread for detachable rock bit 可挂摘钻头用钎杆螺纹
- rock bit for water well drilling rig 打水井机凿岩钻头
- Model of impact between rock bit and wall of well 钻头与井壁碰撞模型的建立及分析
- The boy gobbled up an ice-cream cone. 那个男孩大口大口地吃完了一个蛋卷冰淇淋。
- APPLICATION OF NEW MATERIALS TO ROCK BIT BEARINGS 新型材料在牙轮钻头轴承中的应用
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年，长大后成了地质学家。
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- An ice cream cone in the afternoon tided Mary over until supper. 玛丽下午吃的一个蛋筒冰淇淋帮她维持到了晚餐时分。
- The water had worn a channel in the rock. 水把岩石冲出了一条沟。
- The mountain rise up in a steep wall of rock. 这座山高而陡，形成一道岩石屏障。
- The mountain rose up in a steep wall of rock. 这座山高而陡，形成一道岩石屏障。
- He chiseled that rock into the figure of a woman. 他把那块石头凿成一个女人像。
