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- The mast assem-bly supports the rotary drill head and its hoisting mechanism. 支架组件支持转动钻头及其提升机构。
- The speed of soil delivering and resistance of auger drill are analyzed theoretically and their formulae are presented. 对螺旋钻具输土速度与阻力进行理论分析,给出了输土速度公式和阻力公式。
- Spindle feeds and speeds are controlled by selector levers which engage the proper gears in the drill head. 主轴的进能量和转速是通过选速杆使主轴箱中的适当齿轮相啮合而控制的。
- Based on the machine development, a research and analyses of auger drill bits with different kinds of drill tips and soil cut blade angles were carried out in tree planting field. 在设备研制成功的基础上;对钻孔机钻头不同钻尖、不同切土刀刃角进行了实地试验研究和分析.
- The drill and drilling tools brought advantages in this test, and a lot of construction cautions of auger drilling technology were summarized. 通过本次试验发挥了钻机及钻具的优势,并总结了螺旋钻进技术一些注意事项。
- Auger Design and Manufacture of Flight Auger Drill 螺旋钻机搅龙的设计和制作技术
- Optimizing Choice Basic Parameter of Auger Drill 螺旋钻机主参数的优化研究
- Vacuum Auger Drill for Gas Sampling 取气用真空螺旋钻机具
- Construction technology of auger drill 旋挖钻机施工工艺及控制
- The conclusion presents important references for design and selection of auger drills. 研究结果对螺旋钻具的设计和选用具有重要指导意义。
- We can manufacture all kinds drill heads, sonde housings,directional bladesl,drill bits adapters save subs,starter rods,pullers and pullback swivels according to requirements. 根据客户要求可提供各种规格的导向钻头,钻头版,钻头,短节与接头,拉管接头,分动器。
- She nestled her head on his shoulder. 她将头依偎在他的肩上。
- Test for Soil Delivering Speed and Resistance of Auger Drill 螺旋钻具输土速度与阻力的实验
- Causes for Bit Freezing of Auger Drill and Its Countermeasure 旋挖钻机卡钻原因及其对策
- How to develop the advantages of auger drill for special strata 谈如何使旋挖钻机在特殊地层发挥优势
- Advantages of auger drill in bored pile construction 浅议旋挖钻施工钻孔桩的优势
- The deer lowered its head to drink from the pond. 鹿低下头去喝池塘里的水。
- He gave the little boy a clout on the head. 他在那小男孩的头部打了一下。
- Improvement of fully hydraulic auger drill and its application 全液压旋挖钻机的施工改进与应用
- I saw the small girl topple over and hit her head. 我看见那小女孩栽了一跤,碰着了头。