求翻译：No other area of business operations involves the complexity or spans the geography of logistics. All around the globe, 24 hours of every day, 7 days a week, during 52 weeks a year, logistics is concerned with getting products and services where they are needed at the precise time desired. It is difficult to visualize accomplishing any marketing, manufacturing, or international commerce without logistics. Most consumers in highly developed industrial nations take a high level of logistical competency for granted. When they purchase goods-at a retail store, over the telephone, or via the Internet-they expect product delivery will be performed as promised. In fact,是什么意思？

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