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.
船运公司、物流企业和仓储运营商表示，成本因素促使全世界的客户都将商品分类过程从消费国转移出去。
Shipping lines, logistics companies and warehouse operators say costs spur customers worldwide to move the sorting process for goods away from consuming countries.
这可能对虚拟机目录编制和分类有帮助，也可能是公司部署过程的要求。
That might help for virtual machine inventory and classification purposes, or it might be a requirement in your company's deployment procedures.
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