The extensive range of optional equipment includes hydraulically operated drill rod clamps, rotary casing drives and casing oscillators.
更大的直径可选装钻杆夹持器,套管驱动器和摇管器.
The generously designed drill rod clamping device can be opened up fully to enable the installation of drilling tools and drill casings exceeding 171/2" (444 mm) in diameter.
如图所示的钻杆夹持装置可安装最大直径为444毫米的钻具和套管.
Work-holding devices are called jigs and fixtures.
工件夹持装置叫做钻模或夹具。
vehicular safety sign holder
车用安全标志夹持器
Research and Application of Supporting System for Drill Chucks Design Based on Knowledge;
基于知识的钻夹头设计支持系统研究及应用
Caliper Bracket, Splash Shield And Lever Boot
夹制器托架，挡泥板和拉杆防尘套
Its main functions are maintaining borehole gage,improving drill string stability and protecting lower drill string from excessive wear.
其重要作用是保持钻头尺寸符合标准，提高钻杆稳定性，避免钻杆下部过于磨损。
part of a drill that grips the bit
夹头（钻或钻床上用以夹住钻头的部分）.
Self-Rescue Device Development of Rodless Drilling Unit and Structural Analysis of Guiding & Supporting Device
无钻杆钻具自救装置研制及导向撑压器结构分析
A Kind of Pneumatic Manipulator based on Toggle in Series with Lever Force-amplifier
基于铰杆-杠杆串联增力机构的内夹持气动机械手
The Development of the Roof Bolter Testing System Based on Virtual Instrument;
基于虚拟仪器的锚杆钻机综合测试系统的开发
Folder level alerts are not available on this server.
此服务器上不支持文件夹级的通知。
This server does not support shared folders.
此服务器不支持共享文件夹。
This server doesn't support folder names that contain spaces.
此服务器不支持包含空格的文件夹名。
Design and development of circumferential sealing core holder
环抱式密封岩心夹持器的设计与研制
ANALYSIS AND TROUBLE SHOOTING OF EAF ELECTRODE ARM CLAMPER
电炉电极夹持器失效故障分析与排除
Design and Experiment on Pressure-plate and clamping precision dibbler
压板夹持式精量穴播器的设计与试验
Design and Experimentation of a Micro-gripper with Force Sensing
一种带力传感的微夹持器设计及试验