Propulsion is provided by a rocket engine, rather than a propeller and rudder, which makes steering difficult.
推进器是由火箭发动机提供的，而不是螺旋桨和方向舵，这使得转向变得困难。
A Voith-Scheneider propeller thus provides power and steering at one and the same time.
这样Voith - Schneider推进器就可以在提供动力的同时实现操控。
The spanner for dismantling the propeller is the steering gear room.
拆螺旋桨用的扳手在舵机间。
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