drill的例句大全

The rule of hook load and friction coefficient is applied to enhance predictive accuracy of frictional drag in new area or different BHAs and heighten utilization ratio of frictional drag. Drag theory can be combined with practice, and drill string mechanics analysis system is supplemented.

利用钩载和摩阻系数的规律性，能够提高新区块或者不同钻具组合摩阻预测的准确性，增强现场施工摩阻的利用率，达到理论结合实际，丰富完善钻柱力学分析体系的目的。

Analysis and improvement on fast feed circuit of KY-120 underground rotary drill

地下牙轮钻机快速推进回路分析与改进

By means of analyzing the fast feed circuit of the hydraulic system of KY-120 underground rotary drill, the main factors which affect the service life of feed cylinder are revealed and some suggestions are put forward for the improvement of the fast feed circuit.

从分析KY-120型地下牙轮钻机液压系统的快速推进回路入手，指出了影响推进油缸使用寿命的主要原因，并提出了改进意见。

Elementary analysis and calculation of the QKT 50D drill's hydraulic system design

浅析QKT50D型钻机液压系统结构设计与计算

This is the fifty-dollar saw, and the ten-dollar drill.

这是50美元的电锯及10美元的电钻.

Research on JSL-30 Seismic Exploration Gravel Drill Exploratory right

JSL-30型地震勘探砾石钻机的研究

The JHS Company is a National Grade-one Enterprise and National Key Hi-Tech. Enterprise, which is the largest manufacturer of petroleum drill bit in Asia with world advanced technology.

JHS公司是国家一级企业，国家重点高新技术企业，世界先进、亚洲最大的石油钻头制造商。

She had lots of drill in listening.

她在听力方面受过许多训练.

The lightest core sampling drill in the world!

世界最轻便的浅层取样岩心钻机!

The soldiers do rifle drill in the morning.

士兵在早晨做步枪演练.

The effect of the bearing clearance on the drill in the operations is analyzed.

分析了工程钻机在施工过程中轴承游动间隙对钻机的影响.

This thesis introduces briefly the structures, test situations and main technical parameters of the drill rig.

本文着重介绍了钻机的结构特点 、 试验情况、主要技术参数等.

This article introduce a kind of mechanical and electric combined drive drill rig.

介绍了一种机电复合驱动石油钻机.

The basketball team was doing the same drill for the entire practice session.

篮球队在整个演练期间做着同样的系统训练.

The drill is strong enough to bore through solid rock.

这把钻足以钻透坚固的岩石。

Wall thickness, length, thread of flat drill rods can be made according to your requirements.

外平钻杆的壁厚, 长度, 螺纹可按客户要求配置.

Inthe author synthetically analysed the present situation and development tread of-hole drill home and abroad.

综合分析了国内外牙轮钻机的现状及发展趋势.

The martial arts contest at the drill ground is the most well-written piece of the novel.

较场比武是这部小说中最精彩的地方.

There have been proposals to drill for more oil.

有人提议钻探更多的石油。

a fire drill

消防演习