公司还需要找到新的制造和交货方法。

Companies also need to find new ways of manufacturing and delivering goods.

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如果读取购物车所返回的条目对象实现了分类、交货期和价格方法所要求的接口，则该过程不需要进行任何复制。

If the item objects returned from reading the shopping cart implement the interfaces required by the catalog, lead times, and prices methods, no copying at all is necessary in the process.

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例如，Component1可以是订单准备组件，method2可以是决定交货期的方法，method3可以是决定价格的方法。

For example, Component1 could be an order-preparation component, method2 a method to determine lead times, and method3 a method to determine prices.

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