... line-fill 充满新管线所需的原油、天然气或成品油量 line-hole drilling 靠矿权区边界钻井 line-on-balance 平衡路线法 ...
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This article mainly suggests using the drilling template to solve the difficult problems of manufacturing the group of line hole in the brace.
主要研究采用钻模板来解决支承架上行孔组的加工难题。
Designed with a form as from top to bottom and group drilling set, a new type of drilling machine for air hole for automatic molding line has been awarded a national patent.
新型钻气孔机用于全自动造型线，设计采用自上而下、群钻气孔方式。该设计已获得国家专利。
The wire-line directional drilling and coring technology can take cores and drill directionally without using down-hole motors.
绳索取心技术因其钻进效率高而广泛应用，但其无法实施定向作业。
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