1.
Calculating Method and Effect on ROP of Ratio for WOB of RWD Tools
随钻扩眼工具钻压分配比的计算方法及对钻速的影响
2.
Study on Structure of Reaming While Drilling Tools and Design of Suitable Bottom-Hole Assembly;
随钻扩眼工具结构及与之相匹配的钻具组合设计方法研究
3.
three point neat-bit reamer
三点式近钻头扩眼器
4.
dazzling sunlight [diamonds]
耀眼的阳光 [钻石]
5.
counterbore with guide
有导柱的平底扩充孔钻
6.
To form, shape, taper, or enlarge(a hole) with or as if with a reamer.
扩，整用扩孔钻或仿佛是用扩张钻去造出、成形出、整出或扩大（某个孔）
7.
The Extend Function of Z3040 Radial Drilling Machine--the Drilling-Milling Body
Z3040型摇臂钻床扩展功能——钻铣机构
8.
Application of Bit Water Way in HDD
水平定向钻进扩孔钻头水口应用分析
9.
multisensor MWD system
多传感器随钻测量系统
10.
surface hole drilling
钻下表层套管的井眼
11.
strip-borer drill
露天矿水平炮眼钻机
12.
The hole is drilled, the charge is set up.
孔眼钻好了，炸药安上了。
13.
An awl with a beveled tip, used to make holes in wood for brads or screws.
锥钻，打眼钉钻头倾斜的钻子，用于在木头上钻孔以钉角钉或螺钉
14.
A tapered, serrated tool used to shape or enlarge a hole.
手钻用来钻孔，或扩大孔的尖细带齿的工具
15.
Please pick up the 171/2" bit and 36" hole opener to the floor.
请将这个171/2"钻头和36"扩大器吊上钻台。
16.
Design and Improvement of Back Reamer in Directional Drilling Non-excavation Pipe Laying Construction
导向钻进非开挖铺管施工扩回钻头的设计改进
17.
Vibration Signal Applied to Analyze Reaming Performances of Raise Boring Machine
采用振动信号分析反井钻机扩孔钻进工况
18.
As the bit drills down, pipe is added length after length .
随着钻头往下钻，管子一段一段地加接上去。