1.
Research on the pull strength of new concrete to old adherence with core-drilling and pull-stripping test
新老混凝土黏结界面钻芯拉拔强度的试验研究
2.
Experimental Research on the Tensile Behavior of High Performance Cement-mortar to Concrete with Core-drilling and Pull-stripping Test
高性能水泥复合砂浆与混凝土粘结性能钻芯拉拔试验研究
3.
The Numerical Simulation of Steel Tube Drawing Process with a Short Mandril and Optimizing Design for Tube Drawing Process and Mandril;
钢管短芯棒拉拔过程的数值模拟及拉拔工艺、芯模的优化
4.
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
5.
Design in the mandrel land and smoothing the deformation of rectangular tube drawing
矩形管成品拉拔的芯头工作带设计与变形平滑化
6.
Finite Element Analysis of Copper Tube Drawing Process Using Diamond-Coated Dies with Fixed Plug
金刚石涂层模具铜管固定芯头拉拔过程数值模拟
7.
a corkscrew,ie for taking corks out of bottles
瓶塞钻（拔软木瓶塞用的）.
8.
RESEARCH AND CALCULATION OF THE FIXED SHORT CORE DRAWING FORCE
固定短芯头拔制时拔制力的计算研究
9.
Selection of Drill Tool of Testing in Mixing Pile with Core Drilling Method
水泥土搅拌桩钻芯法检测钻具的选取
10.
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
11.
The Multi-functions of Micro-bubble Drilling Fluid for Core Drilling
微泡钻井液在岩芯钻探中的多重功效
12.
This diamond weighs 270 carats.
这钻石重270 克拉。
13.
Combined Application of Steel Casing by Vibrating Hammer and Rotary Drilling Rig
振动锤沉拔钢护筒与旋挖钻机钻进的组合应用
14.
The drawing stress increased with the speed rise at low speed.
在低速拉拔时,拉拔应力随拉拔速度的增加而增大。
15.
A forcible extraction.
拔出，拉出用力拔出或抽取
16.
Solution to Failed Products,Shell Core Bore Core in Diesel Engine Block
柴油机气缸体壳芯钻芯废品问题的解决
17.
THE COMPARISON BETWEEN SMALL-HOLE ROPE CORING AND COMMON CORING
小口径绳索取芯法与普通钻进取芯法比较
18.
Drilling Fluid Technology Research on Mirabilite Mine Core Drilling in Guyuan of Ningxia;
宁夏固原芒硝矿取芯钻探钻井液技术研究