1) medium-depth slim hole
小口径中深孔
2) small diameter and deep hole
小径深孔
3) small-bore deep hole
小直径深孔
1.
This paper introduced the application of small-bore deep hole method in Fankou Lead-zinc Mine combined with practicalexample.
结合实例介绍了在凡口铅锌矿所应用的小直径深孔采矿法,并对该法的应用效果和优点进行分析与评价,对存在的一些问题提出了看法。
4) slim blasthole
小孔径超深孔
1.
Based on the characteristics of practically excavating the intake tower highslope of Tianshengqiao first - order hydropower station, the slim blasthole presplittingblasting was adopted.
根据天生桥一级电站进水塔高边坡具体开挖特点进行分析，采系用小孔径超深孔预裂爆破，使20m高垂直边坡一次预裂成型，取得了理想的效果，为今后类似爆破工程提供了实践经验。
6) small-diameter hole seat
小口径孔座
1.
In order to solve the recurrent problem of welding cracks in small-diameter hole seat in aluminum mine shells,in this paper,we make a detailed cause and effect analysis and find out the reasons for the cracks.
针对长期受外动压的水雷铝外壳小口径孔座频繁出现焊接裂纹的问题,对部分存在焊接裂纹的小口径孔座进行了解剖和机理分析,找出了小口径孔座焊接裂纹产生的原因。
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