查询词典 fiddle drill

In actual operation of drill rig, premature damages of rock drill occur frequently, while the situations of damage are not the same due to different rock drill manufacturers.

在凿岩台车的实际使用过程中，凿岩机过早损坏的现象经常发生，但由于凿岩机的制造商不同，损坏的情况也不尽相同。

It is the first time that the expert control theory is applied to the blasthole drill control described in the paper, where the expert control structure and strategy for blasthole drill control are studied. At last, an integrated software for the expert control is compiled with Borland C++4. 0 under the operation system of Windows95. It includes the following functions: the simulation for control theory and control structure, the realization of the blasthole drill control.

作者用Borland C++4.0在Windows95环境下编制了专家控制的集成软件系统，一方面对控制方案及算法进行了仿真研究，另一方面针对YZ-55型牙轮钻机的实际工况设计了软件控制功能；并按照牙轮钻机钻进控制的专家控制体系与控制策略，在实验室对控制算法与控制硬件系统进行了实验验证。

Dremel Minimite Drill: If you're going to get serious about bead-making or polymer clay you may want to invest in one of these small drills. I use mine for drilling holes in baked beads. A drill press also allows you to stand the drill upside down leaving hands free to hold the bead or piece as you

迷你小打孔器：如果你主要想做陶珠，你可能要买一个这种迷你的小打孔器，他可以直接把烤好的柱子放在上面，而不需要你用手拿着珠子，就可给珠子穿孔，操作方便，安全。

The types GCPS-20 drill the machine is a kind of compound typemulti-function drill the machine, in order to adapt the our countrydevelopment and demands of the deep foundation and consecution walland marine hydraulic engineering, the bridge engineering, combinethe big caliber to drill the machine to infuse to note the stakeand the characteristics of underground continuous wallconstruction, in order to solve to become the bore but research tomanufacture in complicated geologic strata, hard rock, significantexaltation of ability of special egg stone layer, sill, the stonelayer construction efficiency, is a more economic valid method invariously become the bore method.

GCPS-20型钻机是一种复合式多功能钻机，为适应我国深基础工程和连续墙以及水利工程、桥梁工程的发展与需要，结合大口径钻机灌注桩和地下连续墙施工的特点，为解决在复杂地层、硬岩中成孔而研制，特别卵石层、基石、漂石层能大幅度提高施工效率，在各种成孔方法中是比较经济有效的方法。

There are two kinds of gun drills ,namely ,the center-cut gun drill used for drill blind holes and the trepanning drill .

有两种枪钻，即center-cut枪钻用于钻盲孔、行演练。

Through analyzing the s tressed state of each part of the drill string in borehole,the four main charact eristics and basic reasons of the drill string failure that often occurs and is of general character are analyzed and the feasible,scientific and effective meas ures for preventing these common drill string failure accidents are emphatically proposed in this paper.

文章从分析钻具在使用过程中的受力情况出发，根据钻柱各部位在井内的受力情况，剖析了四种经常发生的、带共性的钻柱失效的主要特征及根本原因，重点提出了比较可行的、科学的预防这几种常发性钻具失效事故的有效措施和看法。

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。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。