Adverb
in a hydraulic manner
Source: WordNetthe block is then tested hydraulically to its full design test pressure on each stream separately Source: Internet
All control surfaces are actuated by dual hydraulically boosted irreversible systems. Source: Internet
Deliveries of these began in April 1939: this was later replaced by the hydraulically operated constant-speed Rotol propeller, which came into service in time for the Battle of Britain. Source: Internet
Bodie 1991, p. 210. The P-38J-25-LO production block also introduced hydraulically boosted ailerons, one of the first times such a system was fitted to a fighter. Source: Internet
In the latter configuration, a pilot-controlled, hydraulically operated dorsal trapeze mechanism would elevate the missile on the trapeze's launch cradle some eight feet clear of the 234's upper fuselage. Source: Internet
It incorporated a hydraulically driven engine starter developed by Rolls-Royce, which was automated following the press of a starter button in the cockpit. Source: Internet