Changes of liquid level are usually monitored with echometers and stable decompression is achieved by controlling the reducing rate of the liquid level.

在煤层气井排采过程中，通常用回声仪来监测环空液面变化，通过控制液面下降速度来实现稳定、连续降压。

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Arc current reducing rate and arc voltage at the time of arc discharging are established for every mathematical model.

得到电弧放电瞬间每一模型下的电流变化率和电弧电压。

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The resistance-reducing rate for the small ground grid or electrode is less than 56.6%, even under large permeability.

即使考虑强大的渗透作用，集中接地体或小型地网的降阻率也不会超出56.6%。

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Going from 3% to 2% is actually reducing the rate of growth by 33.3%, not 1%.

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