... forward propagation tropospheric scattering 对流层散射前方传播 forward propeller 前推进器 forward quarter 船的前部 ...
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The Sikorsky X2 has a pusher propeller mounted at the rear to obtain its high forward speed.
美国西科斯基公司的X2拥有一部安装在后方的推进螺旋桨，这使它获得高速的前飞速度。
Pitch is the theoretical forward movement for one complete turn of the propeller.
间距是一个完整的转螺旋桨的理论向前运动。
By its rotation in water or air, the propeller produces thrust on the Blades, which gives forward motion to the vehicle.
当它在水中或空气中旋转时就对桨叶产生推力，然后推动交通工具前进。
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