Often a firm can lower its average costs of production by increasing the size of its production facilities and its overall volume of production.

通常公司通过提高生产规模和总的生产产量来降低平均生产成本。

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Over the past 10 years, the frequency of pipeline spills has decreased by 59%, and the volume of pipeline spills has decreased by 43%, even as overall production has increased both the mileage of active pipelines and the freight tons shipped by them.

FORBES: Pipeline Infrastructure: Rhetoric v. Reality