out-spin rudder 向螺旋反方向偏转方向舵
You're out in the world, adrift, a ship without a rudder.
你来到这个世界上，随波逐流，是一只没有舵的船。
If a pilot tries to turn with the rudder alone, centrifugal force makes the aircraft skid out the sideways.
当飞行员尝试只用方向舵转弯时，离心力就会使飞机侧滑。
Model tests on hydrodynamic characteristics of rudder have been carried out at the towing tank of Shanghai Jiao Tong University.
本文介绍在拖曳水池中所做的船舵水动力特性的试验研究。
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