旋转钻机

桥梁施工中为减少泥浆对桥位处的环境污染，尽量采用旋转钻机干法成孔。

In order to avoid the pollution caused by slurry around bridge-building sites , they use dry-boring by rotary drills where possible .

论文对露天旋转钻机在几种不同工况下的底架的应力和应变幅值进行了计算分析。

This thesis calculates stress and strain amplitude of the open-air rotary drilling rigs in several different conditions .

旋转钻机是用切削式钻头破碎岩石的钻孔机械，也称为旋转切削式钻机。

Rotary drill is a kind of drilling machine shattering rocks by cutting drill bit , also known as rotary cutting drilling machine .

前一天，他还是乐天派的旋转钻机操作员，第二天他就把啤酒瓶扔到电视机上了，就因为体育节目解说员是女的。

One day , hap-go-lucky rotary drill operator , the next he 's rowing his Schlitz at the TV ' cause some lady sportscaster came on .

近十年来随着国内外煤炭资源的大量开采，旋转钻机的需求量正在逐步增长。

In recent ten years , with the large mining for coal resources both here and abroad , the demand of rotating drill is gradually growing .

在采矿工程中应用旋转钻机已有多年的历史，但多数是应用在井下煤矿、且钻孔直径很小如煤矿电钻等。

Rotary drill has been used in mining engineering for many years , but most used as drilling machine applied to underground coal mine with relatively small hole diameter , such as electric drill used in coal mine .

旋转钻机是使用切削式钻头破碎岩石的钻孔机械。它是煤炭、化工、建材及冶金辅助矿山使用的比较先进的钻孔设备。

Rotating drill is a kind of drilling machine which is used to break rock with cutting type drill , and it is more advanced drilling equipment that used in coal industry , chemical industry , building materials and metallurgy mine auxiliary .

旋转式钻机、乾衣机、开关等

A rotary drill , clothes drier , switch , etc

液压旋转式钻机与反井钻机的发展趋势

Developing Tendency of Hydraulic Rotary Drill and Raise Boring Machine

旋转式钻机，自动推进式，油田或气田用带有一个切点A的随机下推自动机

Drilling machine , rotary , self-propelled , for oil or gas stochastic push-down automata with a cutpoint A

冲击旋转式锚杆钻机设计研究

Design and Research on Impact-Rotary Roofbolter

针对煤巷锚杆支护及其配套锚杆钻机存在的问题，提出了冲击旋转式锚杆钻机结构，并对其进行了设计研究。

Aiming at the existing problems in roadway bolting and its roofbolters , this paper proposes the impact-rotary roofbolter and deals with design for it .

有钻头和可以握住和旋转的手柄的钻机。

A drill consisting of a bit and a brace to hold and turn it .

锥钻，打眼钉钻头倾斜的钻子，用于在木头上钻孔以钉角钉或螺钉有钻头和可以握住和旋转的手柄的钻机。

An awl with a beveled tip , used to make holes in wood for brads or screws . a drill consisting of a bit and a brace to hold and turn it .