在平常的不压井起下钻作业中，管柱下入井眼是依靠其自身重量，不需要附加的向下载荷或者推力。
In ordinary stripping operations, the pipe falls into the wellbore under its own weight, and no additional downward force or pushing is required.
旋转和水平移动作业多采用手动，只有在起重量较大时才采用电动。
Rotation and horizontal movement to use more manual work, only play a greater weight when the use of electric.
采用中空型结构手臂、手腕，焊接电缆内置，可在狭窄空间焊接作业，重量轻便，结构紧凑。
Hollow structure arms, wrists, welding cable built-in, available in a narrow space welding operations, light weight, compact structure.
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