Closed loop control must be used for underwater heat engine propeller system in order to improve the efficiency of weapons.

对于某水下热动力推进系统实施闭环控制是提高武器效能的需要。

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Rotation speed control unit is an important part of underwater heat power propeller system, it directly effects performance of power propeller system.

转速控制单元是水下热动力推进系统的重要组成部分，其直接影响着动力推进系统的性能。

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Thrust calculation of propeller, rudder, wing, and dynamic response of the whole system are discussed.

讨论了螺旋桨和舵、翼的推力解算方法和整个系统的动力学响应过程。

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The cages would be tracked by GPS, kept on course with Goudey's propeller system, and visited by feeding boats.

FORBES: Magazine Article

They feature a system of dynamic propeller thrusters that can hold the ship steady against harsh ocean conditions.

FORBES: Shell And Noble Unveil Two New Ultra-Deepwater Rigs