The standard pipe rack configuration for this drill consists of a long pipe cradle that is fastened to a pair of parallelogram- type swing arms.
本钻机的标准管架配置由一个长管道托架组成，该托架被固定在两个平行四边形的旋臂上。
On the basis of the structure of homemade standard pipe union joint, a new handy union joint, which can be easily reassembled and no special tool applied, is designed.
在国产标准管件活接头结构的基础上，设计了一种拆装方便，不需专用工具，只要用手即可完成拆装任务的新型快速活接头。
On the basis of the structure of homemade standard pipe union joint, a new handy union joint, which can be easily reassembled and no special tool applied, is designed.
在国产标准管件活接头结构的基础上，设计了一种拆装方便，不需专用工具，只要用手即可完成拆装任务的新型快速活接头。
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