نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای free pump:
n: a type of downhole hydraulic pump that is attached to the end of tubing;the tubing must be pulled to service the pump. See hydraulic pump. Compare free pump.
n: a type of downhole hydraulic pump that moves in and out of the well by means of circulating fluids. See hydroulic pump. Compare fixed pump.
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