1) large diameter rock socket drilling
大口径嵌岩钻进
1.
The main technical challenges present with large diameter rock socket drilling are analysed.
分析了大口径嵌岩钻进面临的主要技术难点，并对目前国内常用的３种大口径嵌岩钻进方法牙轮／滚刀钻进法、冲击钻进法（包括无循环和反循环）和气动／液动潜孔锤钻进法的技术现状作了介绍，提出了提高我国大口径嵌岩钻进技术水平的建议。
2) piling embedded rock
嵌岩钻进
1.
The paper compares the characteristics of the several drill technical methods to dig the large diameter piling embedded rock.
比较嵌岩钻进几种方法的特点 ,重点介绍了以双绳同步卷扬为核心部件的重锤式冲击反循环钻进技术的应用 ,拓展传统冲击钻和转盘钻机对地层的适应性 ,通过不同类型的钻具和工艺组合 ,以满足不同地层或不同类型槽孔对钻机的要求。
3) small diameter hole drilling
小口径钻进
4) large diameter bit
大口径钻头
1.
The expert system for the design and proper use of large diameter bits is composed of the subexpert systems for the design and proper use of large diameter bits and a graphical data base.
大口径钻头设计与合理使用专家系统，由大口径钻头设计专家系统、大口径钻头合理使用专家系统、大口径电脑图库三部分组成。
5) large diameter drill
大口径钻机
6) large-hole drilling
大口径钻探
1.
Point to above mentioned problems, took the drilling operation in unusual deep water table and complicated strata in Shouyang area as an example, the paper described the technology, parameter choice and measures adopted during this large-hole drilling ope.
针对上述问题,以寿阳地区特深水位、复杂地层钻探施工为例,阐述大口径钻探施工的工艺、参数选择、以及采取措施。
补充资料：次大口径成品油管道(见大口径原油管道)
次大口径成品油管道(见大口径原油管道)
small big inch products pipeline
次大口径成品油管道比m“，。彬duet、pipeline)见大。径原油管道。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条