Method The cost-benefit analysis method was conducted.

方法采用经济效益分析方法。

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Through the benefit analysis this method reduce the labor intensity and labor cost.

通过效益分析，不仅降低了劳动强度，而且还降低了劳动成本。

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Through the benefit analysis this method reduce the labor intensity and labor cost.

通过效益分析，不仅降低了劳动强度，而且还降低了劳动成本。

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