31. Diesel-hydraulic locomotives are less efficient than diesel-electrics. 32. The complete hydraulic failure left the landing gear lowering mechanism inoperative. 33. The associated steam raising plant and hydraulic pumps have been removed. 34. He constructed a hydraulic forge at Moyeuvre-Grande in 1323. 35. Thrusters, like main propellers, are reversible by hydraulic operation. 36. The hydraulic pressure changed according to engine speed and intake pressure. 37. The exhaust camshaft timing is still controlled using a hydraulic actuator. 38. New hydraulic valve adjusters and twin plug cylinder heads were used. 39. The uspension consisted of conventional leaf springs with hydraulic shock absorbers. 40. The composition is typically compressed using an arbor or hydraulic press.
