placer mining using a pressurized stream of water.
noun 1. a motor that converts the kinetic or potential energy of a fluid into mechanical energy.
noun 1. a machine permitting a small force applied to a small piston to produce, through fluid pressure, a large force on a large piston. noun 1. a press that utilizes liquid pressure to enable a small force applied to a small piston to produce a large force on a larger piston. The small piston […]
noun, Building Trades. 1. a hollow pile through which a jet of water is forced to wash away the ground beneath.
noun 1. the ratio of the cross-sectional area to the perimeter of a pipe, outlet, or the like, through which a fluid is flowing.