Asynchronous motor is a kind of popular power equipment. When the motor is in light or idle run, the efficiency is quite low.

异步电机是一种为数众多的动力设备，当电机运行于轻载或空载时，其效率和功率因素都很低。

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Testing and analyzing the noise source of idle run and cutting, noise frequency characters and all kinds of methods for noise reduction for the surface planer were carried out.

试验和分析木工平刨床空转和切削时的噪声源、噪声频率特性和各种降噪方法。

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On average, McKinsey and the Uptime Institute found, a third of servers run idle.

ECONOMIST: Computers and the environment

In simulations run without the auction, some of the ambulances were left standing idle.

ECONOMIST: Artificial intelligence

Holder warned that leaving inmates idle raises the risk of misconduct and violence and could raise taxpayer costs in the long run if inmates are released with less ability to succeed at legal occupations outside.

NPR: AG, FBI Warn Against Across-The-Board Spending Cut