查询词典 drill

At present, the valveless hydraulic drill is wildly used in many fields. Comparing with the development of the abroad and analyzing the native practice, we take the valveless hydraulic drill that hasn't formed mature theories as the object and make the study with the technology of computer imitation. The main contents of the study are as follows. 1.The accumulators of the hydraulic drill have been carefully analyzed and studied.

目前，液压冲击机械在各个行业中得到迅速推广应用，本文在研究国内外现状的基础上，选择在国内仍处于开发阶段，设计理论还不是很成熟的无阀液压凿岩机为研究对象，运用计算机仿真技术对其进行了研究，主要内容如下：1。

Although it is customary to put these brushes into a hand-held electric drill motor or a speed controlled air drill, they might also be used in drill presses.

通常扭丝型刷子被用于手提便携式电钻或转速一定的风钻，同时它也可在钻床上使用。

Based on the oil field practice of air drill ing applications in karamay oil field, the author summarizes and analyses air-fogged drilling informations at home and abroad, provides a set of air drill ing designing rule applicable to karamay dil field, and compiles the computor soft-ware of air drill ing parameter design guiding field operational practice.

以克拉玛依油田应用空气钻井的现场实践为依据，总结、分析国内外空气雾化钻井资料，提出了一套适合于克拉玛依油田的空气钻井设计原则，用来指导现场实践的空气钻井参教设计的计算机软件。

The model test of drill auger boring into cement soil can easily and intuitively realize the optimization of the drill auger, and provide the basis for designing the optimized drill with least torque.

螺旋挤扩钻头钻进成孔模型试验可以方便、直观地定性实现螺旋挤扩钻头的初步优化工作，为选择所需成孔扭矩最小的最优短螺旋挤扩钻头提供设计依据。

Drill machine to be placed in a center position in drill explore the equipments, All of other equipmentses is to drill the machine equipment around.

钻机在钻探设备中处于中心地位，其他设备都是围绕钻机配备的。

In the commonly used positive cycle of drilling, the mud pump is to rinse the surface with water medium ─﹑ mud or polymer washing fluid at a certain pressure, through the high-pressure hose taps and drill column ﹑ center hole in the bottom of the direct-drill in order to achieve Cooling ﹑ be cutting down the drill cuttings removal and transport to the surface purpose.

在常用的正循环钻探中﹐泥浆泵是将地表冲洗介质─清水﹑泥浆或聚合物冲洗液在一定的压力下﹐经过高压软管﹑水龙头及钻杆柱中心孔直送钻头的底端﹐以达到冷却钻头﹑将切削下来的岩屑清除并输送到地表的目的。

This company mainly produces the overall quality hard alloy milling cutter, drill, reamer, center drill, graver, Ling-tooth milling cutter, dovetail milling cutter, ladder drill, PCD insert carbide cutting tools and various non-standard cutting tools such as Product mainly used in molds, models, Auto, aviation, electronics, advertisement production, woodworking furniture and other industries.

本公司主要生产整体硬质质合金铣刀，钻头，铰刀，中心钻，雕刻刀，菱齿铣刀，燕尾铣刀，阶梯钻，PCD刀具及各类镶硬质合金非标刀具等，产品主要应用于模具，模型，汽摩，航空，电子，广告制作，木工家具等行业。

Blue ribbon diamond drill bit accessories factory network solid name: Domestically produced diamond drill bit; General website: The domestically produced diamond drill bit ( www.blueribbon888.cn is one produces the research and development, the management sale is a body's company.

蓝绶带水钻饰品厂网络实名：国产水钻；通用网址：国产水钻( www.blueribbon888.cn 是一家生产研发、经营销售为一体的公司。

Blue colorful silk ribbon diamond drill bit accessories factory network solid name: Domestically produced diamond drill bit; General website: The domestically produced diamond drill bit ( www.blueribbon888.cn is one produces the research and development, the management sale is a body's company.

蓝绶带水钻饰品厂网络实名：国产水钻；通用网址：国产水钻( www.blueribbon888.cn 是一家生产研发、经营销售为一体的公司。

The machine equipments needed has spiral drill press and drill to expand machine or diving drill press.

所需机械设备有螺旋钻孔机、钻扩机或潜水钻孔机。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。