1.
Analysis of forces on the graphite mold of core bit for oil during hot pressing
石油取芯钻头石墨模具在热压过程中的受力状况分析
2.
Study on drill bit for large diameter core drilling of deep hole in hard rock
硬岩深孔大口径取芯钻进的钻头研究
3.
A new type of thin-wall diamond core drill bit for replacing concrete sleeper bolts
铁路混凝土轨枕硫磺锚固螺栓拔出用金刚石取芯钻头
4.
DEVELOPMENT AND TESTS OF LOW-TEMPERATURE ELECTROPLATED81/2" PDC CORING OIL BITS
低温电铸8(1/2)″复合片取芯油井钻头的研制与试验
5.
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。
6.
Construction Method of Coring for Pore Forming Based on Water Drilling of Super-diameter Rock Pile
超大直径岩石桩水钻取芯成孔的施工技术
7.
Research on Bionic Coupling Diamond Coring Bits in Drilling Hard Rock
硬岩钻进用仿生耦合金刚石取心钻头研究
8.
Threads on rotary shouldered connections for petroleum industry
GB/T9253.1-1999石油钻杆接头螺纹
9.
Petroleum equipment--Thread gages for rotary shouldered connections
GB/T4749-1993石油钻杆接头螺纹量规
10.
Development of polycrystalline diamond composite and its drilling bit for oil and gas
金刚石复合片及其石油、天然气钻头发展概况
11.
On how to Make Rational Use of Impregnated Diamond Core Bit: A Brief Introduction of a New Series of Drilling Bits Manufactured by the Longyear Co.
如何用好孕镶金刚石取心钻头——长年公司新系列钻头简介
12.
mixed oil drilling rig
复合式石油钻井钻机
13.
An oil platform.
钻井平台石油钻井平台
14.
Application of Flush Liquid to Diamond Drilling with Rope Getting Core Technique in Old Mining Area of Yunnan
绳索取芯金刚石钻进冲洗液在云南老厂矿区的应用
15.
a bit used in drilling for oil.
油田钻井使用的钻头。
16.
The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit.
地质学家需要知道钻头已达到什么样的岩层了, 所以时时要用取钻芯头那样.
17.
He essentially, sold drill bits to oil-drilling companies.
翻译为：他其销者，卖钻头给开采石油的公司。
18.
The Design and Its Experimental Researcch of a Drill Bit for Down-hole Casing Drilling
石油井下套管开孔钻头设计及试验研究