从公司可知，车间经理控制成本中心，地区销售经理操作收入中心。

For the company shown, plant managers run cost centers, and district sales managers operate revenue centers.

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这些交通设施的改善，使得销售农产品的成本大大降低，并使得农民可以迁移到远离人口密集的东部的地区。

These improvements lowered the cost of marketing farm products and enabled farmers to move to areas far from the more densely settled East.

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另外，从种植成本、产品加工、劳动用工、产品销售运输等方面与其它地区相比大大降低了公司运营成本。

Meanwhile, the cost of cultivation, processing, labor, product marketing, transportation and other areas in comparison with other regions of the company greatly reduce operating costs.

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