When multistage amplifier has double-input double-output differential circuit, the two methods produce different calculating results.

多级放大器的放大倍数的计算有两种基本方法，但当多级放大器中含有双入双出型差动电路时。

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Calculate has two input parameters with type double.

Calculate有两个double型的输入参数。

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To open the XML Input stage, double-click on its icon.

要打开 XML Input 阶段，双击它的图标。

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