retrievable inner barrel [油气] 可回收的内筒
inner core barrel 内岩心筒
inner gate barrel 导水机构内圈
split inner-tube core barrel 内管可拆式双层岩心管
During dewatering, the motor rotates in forward direction, and the horizontal wavy wheel rotates together with the inner barrel.
在脱水过程中，电机正转，波轮处于水平位置，与内桶同步旋转。
When coring barrel gets stuck downhole, it is very easy to back off safety joint to trip out inner barrel and cores, and only left outer barrel for fishing operation.
当岩心筒在井下被卡住时，很容易地从安全接头螺纹处倒开，起出内筒和岩心，只留下外筒进行打捞。
The wire-line coring tool of HSQ serial has kept up the technical features of conventional placer drills and derived the advanced structure from steel cable fishing tool for inner barrel.
HSQ系列绳索取心钻具，既保持了现用砂钻钻进的工艺特点，又发挥了钢绳打捞内管技术的方便性。
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