To ensure the best performance, please kindly check in advance and furnish us the exact up-link and down-link frequency range when you ordering.

为确保最好的机器性能，在调整时，请慢慢测试上行及下行频率范围，找出精确的位置。

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Electronic descaler is one that creates a rapidly alternating current in a frequency range that exceeds the best estimate of the internal natural frequency of water.

电子除垢器是一个创建一个迅速交流电的频率范围内，这超过了最乐观的估计内部自然频率的水。

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