Fly field frequency control is a key to fly field safety.

飞场频率管控对飞行安全极为重要。

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Increases in magnetic field frequency decreases the capability of the dis-type MR fluid damper to reduce rotor vibration.

随着磁场频率的增大，盘型磁流变流体阻尼器抑制转子振动的能力减小。

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The effect of alternating magnetic field frequency on the meniscus, microstructure and element distribution of the static formed ingots of minitype square billet of 7050 aluminium alloy.

研究了在交变磁场作用下磁场频率变化对7050铝合金小型方坯静态成型铸坯熔体的弯液面、显微组织以及元素分布的影响。

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Although they have not been found to cause any harm, the cables on conventional pylons, which transmit a three-phase alternating current, generate a strong electric field and a continuous buzz of low-frequency radio waves.

ECONOMIST: Monitor