送交者: skipper3 于 2005-3-29, 12:24:15:
回答: 飞机(活塞式，涡轮式，还有喷气式)和轮船(蒸汽，涡轮)有没有换档的问题 由 HunHunSheng 于 2005-3-28, 22:05:02:
angle of "leaf" of propeler, hence the load of engine, in realtime instead of adjusting the rotational velocity of the propeller. This mechinsm is equivalent to constant velocity transmission and saves the weight of a gearbox.
See even a WenKe like myself knows these things better than you BeiDa educated LiKe.