舵机的四个撞杆的密封环许更新。
The sealing rings of four pieces for rams of steering gear to be renewed .
他大喜，用力猛拉操纵杆，飞机贴海面冲过去，撞落在松软的海滩上，库尔晕了过去。
He exultation, forcibly jerked joystick, aircraft stick sea blunt past, bump fell on the soft beach, Kurt faint.
驾驶员头部后面的通风口起着防滚保护杆的作用，用以在赛车翻侧时防止重物撞向车手。
The air intake behind the drivers head ACTS like a 'roll bar'. If the car flips over, it is physically the only thing stopping the weight crushing the driver.
驾驶员头部后面的通风口起着防滚保护杆的作用，用以在赛车翻侧时防止重物撞向车手。
The air intake behind the drivers head ACTS like a 'roll bar'. If the car flips over, it is physically the only thing stopping the weight crushing the driver.
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