查询词典 practice drill

It is recommended to start development of offshore drill ship. It is preferred to modify the petroleum exploration drill ship into NGH drill ship. Turbine rotating will be considered to counteract the ocean tides to obtain dynamic balance so as to ensure the stability of the NGH sampling operation.

并建议开展海洋钻井船的研制工作，可优先考虑将石油勘探钻井船改装成天然气水合物勘探钻井船；同时还要保证其取样位置的稳定性，可采取动平衡原理，通过涡轮旋转来抵消海流的作用。

Employing the method of complex helical drill point design,the formula of the clearance angle of inner cut edge for the socket drill is derived and the relationship between the clearance angle and the slantwise angle of the inner cut edge is deduced to innovate the design and manufacture of the socket drill.

通过复杂螺旋面钻尖设计方法导出锪窝钻钻尖内刃后角公式及内刃后角与内刃偏角的关系表达式，改进了锪窝钻的设计与制造。

Our special and rock drill steel company total investment of 500 million s , it ' s customized produce the rock drill steel for our products, we can produce almost all kinds of rock drill steel, in the production process, H22 Rod have the largest production output , it ' s using the material of 40SiMnCrNiMo （ Silicon, Manganese, Chromium, Nickel, Molybdenum ）, and it ' s performance are better than the rod use the material of 95CrMo and 55SiMnMo.

我们的特钢公司总投资额5个亿，是专门为钎具钢而设计的，几乎能生产所有钎具钢，在生产过程中，H22钎杆的生产量最大，采用的是40SiMnCrNiMo这种材料，性能比95CrMo和55SiMnMo都要好一些，因质量稳定，供货及时，价格合理，我们公司很快成为中国最大的H22钎杆供应商之一。

When it is to drill a deep hole, the drill may be fixed on a ground wood beam, and then put up the drill tower.

平整场地使钻机安放平稳牢固，当深孔钻进时，可将钻机固定在自备的地木梁上，竖好钻塔。

The friction weldabilities of DZ60 steel drill rod pipe and 40Cr steel drill rod joint for geological drill rod are explored.

地质钻杆用DZ60钢钻杆管体与40Cr钢钻杆接头焊接而成。

Drill pipes often work in abominable conditions under alternating stress and the friction collision between drill pipe and borehole wall, which puts drill pipes in the weakest component in the whole drilling equipment and tools, the crack propagation results in perforation or part often emerge.

钻杆常处于交变应力并且在与井壁摩擦碰撞的恶劣条件下工作，往往成为整个钻井设备与工具中最薄弱的环节，由裂纹发展致穿孔或完全断裂时有发生。

Model YTR150 rotary pile drill is another high performance rotary pile drill developed on the basis of model YTR230, featuring high torque, high maneuverability, low noise, low pollution, high operation efficiency and easy maintenance. The major specifications have reached those of foreign similar products. Model YTR150 rotary pile drill adopts hydraulic retractable crawler chassis made by Caterpillar. Its mast is lifted and lowered in full range with verticality automatically adjusted. Operating status parameters displayed by touch screen and monitor. Hydraulic pilot control is used for overall machine operations and load sensing hydraulic system and programmable logic controller are adopted to implement automation for easy and agile operation.

YTR150型旋挖钻机是在YTR230的基础上开发出来的又一种高性价比的旋挖钻机，具有大转矩、机动灵活、低污染、低噪声、施工效率高及维护方便等特点，主要性能参数达到国际同类产品水平YTR150型旋挖钻机采用了卡特彼勒生产的液压可伸缩式履带底盘，桅杆全程自动起落，自动调整桅杆垂直度，触摸屏和监控器可以直接显示工作状态的参数，整机操纵上采用液压先导控制，采用负荷传感液压系统和可编程控制实现自动化，使用方便灵活。

An important way is that the drill master sitting in the back cabin has the choice of piloting switching by one added button: In the default setting, the drill master has the right of control; the student like the back gunner on IL2 now can watch but can't pilot the plane. The panel data come from the drill master's computer and received by the student's computer, showed on his screen.

重要的一个方法是，坐在后舱的教官拥有驾驶权的切换选择权，可通过增加一个按键来控制，具体操作过程如下：默认情况下，教官拥有控制权，学员如同现在IL2的后座射击手一样，只能看而不能驾驶飞机，此时的仪表数据以教官电脑为准，学员电脑仅接受数据，并在本机上运算出仪表数据，并显示出来。

The ZOOMLION KSD25 Dry-Wet Horizontally directional Drill is the first drill which drills through hard rock without a bentonite and mud pump. Its pneumatic percussive technology has not only solved the problem of mud pollution, but also has increased its efficiency 40% higher than a normal drill. Additionally, its cost is also much lower, and therefore, it has been considered as a most efficient solution for complicated stratum (including pebble and gravel, backfill and rock).

中联KSD25干湿两用水平定向钻孔机是我国第一台不使用膨润土和泥浆马达就能在硬岩中钻进并导向的钻机，其国际领先的气动冲击钻机技术不但不存在泥浆污染的问题，而且效率比普通钻机提高40％以上，成本也要低廉得多，被公认为目前对付复杂地层（包括卵砾石、回填土和岩石地层）最为有效的方法。2 s# C J， k5 _% C

The HWDP's uses AISI 4145H alloy structural steel, the technique of production exactly carries on the SY/T5146-1997 standard, HWDP is one kind of medium weight and the drill pipe similar drilling tool, its wall thickness is thicker than the drill pipe, is thinner than the drill collar, on its thick wall body connected special and lengthen drilling joint.

整体加重钻杆的原材料用钢是AISI 4145H合金结构钢，生产工艺严格执行SY/T5146-1997标准，加重钻杆是一种中等重量和钻杆类似的钻具，其壁厚比钻杆大，比钻铤小，其厚壁管体上连接有特别加长的钻杆接头。

Don't listen to their haver, nothing of that sort.

别听他们胡说八道，根本就没那回事。

But bank's shares trade below their book value, suggesting that investors are skeptical.

但是，银行股票以低于账面价值的价格交易，这一点反应了投资者的怀疑。