1.
The use of the power drill is indispensable. Practice it.
磨钻的使用是必不可少的。多进行练习。
2.
bit cutting angle
钻冠的尖度，钻头磨角，钎子头刃角
3.
Keywords: dressing, grinding wheel, wear, diamond form roller.
关键词：修整、砂轮、磨耗、钻石磨轮。
4.
AN APPLICABLE METHOD FOR ESTIMATION OF FORMATION DRILLING STRENGTH AND BIT WEAR
地层抗钻强度与钻头磨损实用评估方法
5.
Repeating Sharpening of the Twist Drill and Computer Simulation;
麻花钻钻尖的重刃磨技术及计算机仿真
6.
Development of Abrasive Water Jet Drilling-cutting Aiguille and Experiment Study on Cutting Performance of Abrasive
磨料射流钻割一体钻头研制及切割特性研究
7.
EXPERIMENTAL STUDY OF ABRASIVE-CORROSIVE WEAR OF MUD PUMP LINER
钻井泵缸套材料磨料—腐蚀磨损实验研究
8.
Study on Nozzle Wear Mechanism and Drilling Test of Swirling Abrasive Water Jet;
旋转磨料射流喷嘴磨损机理与钻孔试验研究
9.
Adversity is the diamond dust with which life polishes its jewels.
逆境之于生命，犹如打磨首饰的钻石沙。
10.
drill ,crown, toothed, whether or not abrasive coated working edge
有齿顶钻,无论表面是否涂有磨料
11.
drill ,crown, not toothed, with an abrasive coated working edge
无齿顶钻,带涂有磨料的工作刃
12.
he was in the forefront; he was at the head of the column.
钻杆的最前部都已经磨损了。
13.
the ever lasting diamond -- the unfailing crystal-clear sparkle.
永不磨灭的晶莹——钻石恒久远。
14.
AN APPLICATION OF ABRASIVE WATERJET INTO CUTTING OF CONE BIT
磨料水射流在切割牙轮钻头中的应用
15.
Drilling and forming mechanisms of ground surfaces in engineering ceramics
工程陶瓷的磨削钻孔及表面形成机理
16.
Design and Research of PC-Based Micro Drills Grinder
PC-BASED微型钻头磨床的研究与开发
17.
Research Progress of Wear Resistant Materials in Oil and Gas Drilling Technology
油气钻探技术中耐磨材料的研究进展
18.
An experimental study of drilling small and deep blind holes with an abrasive water jet
磨料水射流钻削深小盲孔的试验研究