The invention of pneumatic drill.
风钻的发明。
It can provide the base for noise control of pneumatic drill.
为气动凿岩机噪声治理提供了依据。
The noise from that pneumatic drill outside gets on my nerves.
外面风钻的噪音真使我心烦。
This paper is based the full analyse and research of noise source of pneumatic drill.
对气动凿岩机产生的噪声声源进行了全面的分析研究，介绍了各声源的特性及测试方法。
As the men refused to stop working, the police attempted to seize the pneumatic drill.
由于工人拒绝停下手中的活，警察想夺风钻。
It takes the shock and rotation noise as one of the main noise source of pneumatic drill.
将气动凿岩机的冲击噪声和回转噪声作为一种主要噪声声源。
The sound of a snore (up to 69 decibels) can be almost as loud as the noise of a pneumatic drill.
鼾声(最高达69分贝)的响度可能相当于风钻的噪音。
One great-torque motor with proper power is made to match with the rotary churn unit in pneumatic drill to form the electric pneumatic drill as one kind of powerful electrically driven tool.
将适当功率的大扭矩特种电动机与气动风炮上的旋转式冲击装置相匹配而产生出的一种有着强冲击扭力的电动工具――电动风炮。
Subgrade excavation of rock using pneumatic drill and DTH drill Hole drilling, loose blasting in small and deep hole blasting, excavators and loaders loading ballast, dump truck, bulldozer tie.
正在翻译，请等待…路基挖石方采用风钻和潜孔钻打眼，小型松动爆破和深孔爆破，挖掘机和装载机装碴，自卸汽车运输，推土机配合。
Thes detecting structure instrument of the roof rock is integrated in the pneumatic bolt drill and data processing is adopted BP algorithm of mature net to identify the structure.
其中，顶板岩层结构探测仪是集成在风动锚杆钻机上，数据处理采用训练成熟的BP算法神经网络进行结构的识别；
Complete range of various capaclties, suitable for general electric drill, pneumatic, mpact electric drill and bench drill, light weight.
适合于各种作业如：常规电钻、风钻、震动电钻、小台钻、且重量较轻。
This paper analysed the noise characteristic of pneumatic rock drill stell. Introducing the harness method of pneumatic rock drill stell noise.
对气动凿岩机钎杆产生的噪声特性进行了分析研究，介绍了钎杆噪声的治理方法。
Finish the pneumatic design of all the functions of hill-drop drill, and produce the pneumatic circuit drawings.
对气动部分的各种功能进行了设计，并绘制出气动回路图。
The frame construction, the work flow and the three dimensional modelling method of pneumatic rock drill based on virtual prototype technology were elaborated.
阐述了气动凿岩机虚拟样机设计的框架结构、工作流程和三维模型构建方法，并在此基础上进行了参数化设计与运动仿真的研究。
A kind of pneumatic tray automatic drill was designed in order to improve work efficiency and work environment.
为了提高加工效率、改善工作环境，设计开发出一型气动盘式自动钻孔机。
This paper designed a new type of muffler for pneumatic rock drill with the theory of impedance.
利用阻抗消声原理为气动凿岩机设计了一种新型的消声罩。
The paper uses the method of value engineering project appraisement to compare corkscrew groove-wheel wheat precision drill and wheat pneumatic precision drill.
利用价值工程方案评价的方法，对螺旋槽轮式小麦精量播种机和气吸式小麦精量播种机进行方案评价比较。
The work principle and the motion order of the pneumatic loop of total drill was explained based on the example of thrust force air cylinder.
本文给出了该机的原理和整体结构，介绍了钻孔模块部分。并以推力气缸为例，详细说明了整机气动回路的工作原理及其动作顺序。
The work principle and the motion order of the pneumatic loop of total drill was explained based on the example of thrust force air cylinder.
本文给出了该机的原理和整体结构，介绍了钻孔模块部分。并以推力气缸为例，详细说明了整机气动回路的工作原理及其动作顺序。
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