41. All other locks on the Thames are hydraulically operated. 42. The valves are actuated by hydraulically adjusted rocker arms with roller cam followers. 43. The tank was steered by conventional tillers hydraulically actuating onto external brake discs. 44. Spiders and whipscorpions extend their limbs hydraulically using the pressure of their hemolymph. 45. The arrangement of the crochets can be helpful in identification to hydraulically powered. 46. The hydraulically operated clutch was replaced with a cable operated mechanism in 1977. 47. However, the hydraulically pushed segment-by-segment across the river. 48. A fully open hydraulically -controlled, partially automatic, adjustable aerofoil wings. 49. The G series introduced carburettor heating together with an hydraulically damped mounting system. 50. The gaps between the rolls can be mechanically or hydraulically adjusted and maintained.
