As the existing great power consumption of empty-load or light-load, the bipolar PWM control can be applied only in small or middle power servo control systems.

在轻载或空载时由于存在大的功率损耗，双极性PWM控制只能被应用于中、小功率伺服控制系统。

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Hydraulic systems use cartridge valve integrated control system, integrated cartridge valve control system has good sealing, flow capacity, small pressure loss characteristics etc.

液压系统选用插装阀集成控制系统，插装阀集成控制系统具有密封性好，通流能力大，压力损失小等特点。

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Due to the large torque coefficient, small torque ripple and ease of control, permanent magnet synchronous motor (PMSM) system has been widely used in many accurate servo control systems.

永磁同步电动机系统具有力矩系数大、力矩波动小以及控制灵活等优点，在许多精密伺服控制系统中得到广泛应用。

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Another example of exporting prowess is TDSi, a small Dorset firm that designs access-control systems for offices, airports and rail networks.

ECONOMIST: Manufacturing and exports

Things like control systems are needed for all reactors, big or small.

ECONOMIST: The prospects

Malone built up this portfolio by taking small stakes in new channels that needed carriage on TCI cable systems, masterfully rolling them into larger stakes or direct control.

FORBES: Taking Liberty