Finally,the paper presented the problems existed in the aspect of using air hammer for geophysical drilling and the direction of studied d.

闡述了影響沖擊旋轉(zhuǎn)鉆井技術(shù)發(fā)展的主要因素中文字幕丝袜综合第二页，提出了氣動沖擊器用于物探鉆井開發(fā)方面存在的問題和研究方向成年无码动漫AV片在线观看不卡。

This paper presented some main factors affecting the development of revolving-drilling technique.Finally,the paper presented the problems existed in the aspect of using air hammer for geophysical drilling and the direction of studied d...

闡述了影響沖擊旋轉(zhuǎn)鉆井技術(shù)發(fā)展的主要因素www.日本视频，提出了氣動沖擊器用于物探鉆井開發(fā)方面存在的問題和研究方向日本视频一区在线观看。

By analysis of enforcement of drilling tools of air downhole hammer 's following pipe, the factors affecting the drilling speed and depth of the following pipe are obtained.

通過對空氣潛孔錘跟管鉆進(jìn)鉆具的受力分析插插插射射射，得到影響潛孔錘跟管鉆進(jìn)速度和跟管深度的因素夜色樱花网站。

The air DTH hammer drilling technically mainly used for drilling, shotting drills and wells in the past.

風(fēng)動潛孔錘鉆進(jìn)技術(shù)過去主要用于鉆鑿爆破孔、基巖水井等国产亚洲欧美日韩久久图片。

It also analyzes the reasonable method to determine such drilling parameters as drill pressure,rotation speed,gas injection pressure,gas injection volume in view of the character of air hammer drilling in detail,elabora.

分析了我國煤層氣勘探開發(fā)現(xiàn)狀AV黄片在线免费，基于煤層氣生產(chǎn)特征分析了煤層氣開發(fā)向產(chǎn)業(yè)化、商業(yè)化發(fā)展降低鉆井成本的主要技術(shù)方法国产13页。

air hammer drilling：氣動震擊鉆井

air?gas 空氣燃料混合氣 | air?hammer drilling 氣動震擊鉆井 | air?heave structure 氣脹構(gòu)造

drilling hammer：鉆機(jī)沖錘

drilling equipment 鉆探設(shè)備 | drilling hammer 鉆機(jī)沖錘 | drilling instrument 鉆井儀表

drilling hammer：打眼錘

drilling grinding machine ==> 鉆磨兩用機(jī) | drilling hammer ==> 打眼錘 | drilling implement ==> 鉆孔設(shè)備

hand drilling hammer：手動穿孔錘

hand crimp tool;手動卷邊工具 | hand drilling hammer;手動穿孔錘 | hand driver;螺絲刀

hammer drilling：鎚擊鉆井

"hammer drill","鑿巖機(jī) ; 風(fēng)鉆機(jī) ; 鎚鉆機(jī)" | "hammer drilling","鎚擊鉆井" | "hammer in a line","管爆聲"