For welding thicker pieces, automatic frequency control should be adopted.

对于较厚的焊件，应进行频率自动控制。

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The electromagnetic vibrational machine which has function of automatic frequency follow-up and stable amplitude was studied.

本文对具有自动频率跟踪和反馈稳幅功能的电磁振动机械进行了研究。

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Calling a registered frequency when the Automatic frequency Selection function is not used. This example calls a frequency channel 01.

不使用自动频率选择功能时，调出已登记的频率。该例调出01频道的频率。

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Grid Friendly Appliance Controller: Developed at the Pacific Northwest energy Laboratory, the Grid Friendly Appliance controller senses grid conditions by monitoring the frequency of the system and provides automatic demand response in times of disruption.

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In addition, by monitoring the frequency or voltage of the power grid, the platform provides automatic demand response when grid conditions call for it.

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