نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای bull gear:
n: the large circular gear in a mud pump that is driven by the prime mover and that, in turn, drives the connecting rods.
n: The big and round gear installed in drilling pump.
n: 1. a forged-metal shaft that joins the piston of an engine to the crank-shaft. 2. the metal shaft that is joined to the bull gear and crosshead of a mud pump.
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