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- The development and application of a new type rock bit with bearing liner structure 镶套轴承结构牙轮钻头的开发与应用
- Ready for roller type &presser foot. 备圆轮式与平押式押脚两种。
- People call this type rock peach-blossom stone. 人们把这种石头叫做桃花石。
- Cone type roller bearing rock bit 滚柱轴承锥形牙轮钻头
- 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。
- Type GC-D is a roller type freewheel non-bearing supported, Earrings are required to support axial and radial loads. GC-D系列为无轴承支撑滚柱式单向离合器。
- Description: Type GC-A is a roller type freewheel non-bearing supported.Nominal outside diameter is a standard ball bearing dimension. 系列为无轴承支撑滚柱式单向离合器，外部尺寸与标准轴承尺寸相同。
- The upper saddles are fixed, while the lower ones are on pendulum type rock bearings. 上端鞍座是固定的，下端鞍座安置在摆动式的摇座上。
- In fact these steeple type rock landscape is a geological change natural phenomenon. 实际上这些尖塔式岩石景观是一中地质变化的自然现象。
- Authors have made triaxial creep tests with mudstone on the gravity lever type rock creep testing machine developed by themselves and provided with triaxial pressure cell. 采用自行研制的重力杠杆式岩石蠕变试验机并配备三轴压力室，从而对泥岩进行了三轴蠕变试验。
- It points out that the principle of hacking is low speed, centrifugal force is the key for separating, and roller type comber should be adopted, which causes little damage to apocynum fiber. 指出开松的原则是“低速度、慢开松、小密度”；分离的关键是离心力的大小，必须考虑终末速度和腾空速度；梳理成形则应采用完全罗拉式梳理，对麻纤维损伤小。
- It points out that the principle of hacking is low speed,centrifugal force is the key for separating,and roller type comber should be adopted,which causes little damage to apocynum fiber. 指出开松的原则是“低速度、慢开松、小密度”;分离的关键是离心力的大小,必须考虑终末速度和腾空速度;梳理成形则应采用完全罗拉式梳理,对麻纤维损伤小。
- Description: Type GC-C is a roller type freewheel non-bearing supported.Nominal outer diameter is the same as a series 62 ball bearings.Bearings are required to support axial and radial loads. 产品说明： 型号 GC-C 特性及应用: GC-C系列为无轴承支撑滚柱式单向离合器，外形尺寸与62系列标准轴承相同。
- Load carrying ability of tapered roller bearing on new high speed rock bit 新型高速牙轮钻头圆锥滚子轴承承载能力分析
- Design of Roller Type Feed Control Device 辊式自动送料装置的设计
- Rod thread for detachable rock bit 可挂摘钻头用钎杆螺纹
- iron roller type rice milling machine 铁滚筒碾米机
- rock bit for water well drilling rig 打水井机凿岩钻头
- Friction roller type intelligent pumping unit 滚筒式智能抽油机设计
- Effect of Machining Process on Rock Bit Cone Break 机加工工艺对钻头牙轮开裂的影响
