该方法简单易行，测量成本低。

This method works easily with a low measure cost.

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通道切换方法则每增加一个通道都会增加测量成本。

Using switching channel method, the cost will be increased with the channel number.

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该方法基于通用PC架构，测量成本低，适于普遍采用。

The improved measurement method is based on general PC, so it has lower measurement cost and can be applied widely.

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