The platforms at either end are hydraulically raised or lowered, according to the state of the tide, to the level of the ferry.
It is hydraulically operated and can be moved in any desired direction.
In these establishments, hydraulically worked from the river, cloths of cheap character for native clothing are made.
With the motors retracted it was next to impossible to get to them, past their hydraulically operated booms and actuators.
A descriptive term for a system operated or moved by a fluid. The hydraulic jack, in which force is transmitted from a handle by means of a heavy oil, is probably the most familiar hydraulic device.