中心钻

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。

Western Steel, Coal and Petroleum Drill Material Modern Logistics Center will become the important logistics base of Xi'an International Port Zone.

西部钢材与煤炭石油钻采物资现代物流中心也将成为西安国际港务区的重要物流基地。

Major equipment has: 2M X 10M ordinary lathe, 250 and below, various types of boring machine specifications, 5M roll 7M double column vertical lathe comb, 100X6M deep-hole drilling, 3M X12M gantry milling bed, HR Two-table machining centers, CNC boring 130 milling machine, frequency, medium frequency quenching machine, 15T electric furnace, etc..

主要设备有：2M X 10M普通车床、250及以下规格各类镗床、 5M 辊梳齿 7M双柱立车、 100X6M 深孔钻、3M X12M 龙门铣刨床、HR双工作台加工中心、130数控镗铣床、工频、中频淬火机床、15T电炉等。

We have a complete set of professional production equipments (such as gear hobbing machine, grinding machine, numerical-control machine,? hydraulic drawing bench, drilling and milling machining center, etc) achieving the production ability of manufacturing 800,000 products every year.

合资公司作为生产基地占地面积2万余平方米，拥有固定生产厂房5000余平方米，各种生产专业设备齐全（滚齿机、钻铣加工中心、磨床、数控机床、液压拉床等），具备年生产传动件80万件的生产能力。

It'd be easier to drill the mounting hole on-center, for one, and more importantly, it'd no longer be necessary to install the temporary hardware required to keep the round tube from rotating during cutting.

希望它能在更容易安装孔钻的中心，为一个，更重要的是想不再需要安装所需的临时硬件，以防止在切割旋转圆管。

We started with a redesigned graphite chassis, now flat-fronted with twin mini-bumpers for impact-damage resistance, and with tweak reference center holes already drilled in. The steering servo mounts are all new Factory Team blue aluminum items with multiple mounting points to fit most servos.

我们已开始与一个重新设计的石墨底盘，现在平板门前双迷你保险杠影响损伤的抵抗力，以及与调整的参考中心孔已钻英寸督导伺服装置都是新厂队蓝铝项目与多个安装点最合适的伺服。

It is reported that in 2003, China Building Materials Industry Center of Shaanxi Geological Survey Corps in the town of Ningshan County Jiangkou Hui bears proved a rare blue diamond black granite stone mines night.

据悉，2003年，中国建材工业地质勘查中心陕西总队在宁陕县江口回族镇境内探明了蕴藏着珍稀石材夜蓝钻黑花岗石矿山。

Are also available various kinds of imported CNC machining centers Dao, tube clip, pull nails, lock knife blocks, find edges, and stainless steel coated wire attack, longer cutter, drilling tools such as lengthened.

另备有各种进口CNC加工中心刀把，筒夹，拉钉，锁刀座，寻边器，不锈钢涂层丝攻，加长立铣刀，加长钻等工具。

Then, thanks to the Portuguese discovery of the direct sea route to India, Antwerp flourished as a diamond center, as the city was well-situated to receive vast supplies of rough from Lisbon as well as from Venice.

由于葡萄牙人发现直通印度的海路，促使安特卫普蓬勃发展成为钻石中心。安特卫普优越的地理位置使它便于从里斯本和威尼斯进口大量钻坯。

Game pleasure: The children may climb up the central platform from each position, again along many slides, the sliding sleeve or the slide rod goes downstream, feels one by one runs, drills, climbs, jumps, swings, crawls, slippery, turns the pleasure which and so on functionality movements bring, both has exercised children＇s balanced, the independent coordinated and the creation ability, and is advantageous in the children enhances protects oneself to realize.

游戏乐趣：小朋友们可以从各个方位爬上中心平台，再沿着多个滑梯、滑筒或滑杆顺流而下，逐一感受跑、钻、攀、跳、荡、爬、滑、翻等功能性动作带来的乐趣，既锻炼了孩子们的平衡、独立协调和创造能力，又有利于孩子们提高自我保护意识。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。