The top-head has large torque, wide range of speed, big pull force.

动力方扭矩大、转速范围广，起拔力大。

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A simple and effective compensation method in low frequency to extend the range of speed is introduced in the paper.

本文将介绍一种简单有效的低频补偿方法以扩大其调速范围。

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Practices indicate it has advanced design, high performance-cost ratio, and wide range of speed, reliable operation, and better portability. The electric control system can be applied to...

应用实践表明，该系统设计先进、性能价格比高、调速范围大、运行可靠、可移植性强，可以广泛应用于各种类型卧式镗铣床的电气控制系统改造。

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Although Raytheon would not give details of the height, speed and range of the UAVs, saying that data "sensitive", it did say that the Navy wanted tests to be as realistic as possible, suggesting that the aircraft were behaving in the way military planners would expect them to.

BBC: Anti-aircraft laser unveiled at Farnborough Airshow

Part of that need will be met in the future by a new generation of rotorcraft, including the revolutionary MV-22 tiltrotor that combines the vertical agility of a helicopter with the speed and range of a fixed-wing plane.

FORBES: Marines Fight For Crucial Vehicle As Budget Cuts Loom

Finally, AgustaWestland surprised the HeliExpo crowd by revealing that it has been secretly testing an electrically powered tiltrotor, mixing the versatility of a vertical takeoff and land helicopter with the speed and range of a fixed-wing aircraft.

FORBES: Helicopter Industry's Success Secret: Market Diversity