The method was used in double PWM speed-adjusted system and proved to be feasible.

在双pwm变频调速系统中的应用结果表明了该方法的可行性。

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The speed-adjusted system for Permanent magnet synchronous motor is used VVVF technology.

永磁同步电机调速系统是采用变压变频技术对电机进行调速的控制系统。

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It adopts speed-adjusted system through frequency conversion, which can realize non-pole speed adjustment.

采用变频调速系统，可实现不停机无级调速。

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Its investigation of the Minot incident found that the ammonia warning failed to get on the air not because the company's evil capitalists had gutted local staff and facilities, but because the police had not adjusted to a new, federally mandated warning system.

ECONOMIST: Media ownership rules