求翻译：Market extension intensifies a business arrangement. Extension is based on moving toward zero defects and introducing value-added services in an effort to solidify and expand the business relationship. At this point the relationship became highly selective since the number of customers who were willing or able to participate was limited. In Bergen Brunswig's strategy, such value-added alliances consisted of a variety of programs to improve the competitiveness of selected customers who were willing to commit to Bergen Brunswig as almost a sole-source supplier. Typical of such value-added innovations were sophisticated bar coding, computer terminals for pharmacy checkout counters, point-of-sale encoding, shelf plan-o-gramming, immediate price change administration, profitability, and inventory turn reports. These innovations were designed to increase operating efficiency and extend overall competitiveness. Such value-added services were offered only to customers who committed to an extended business relationship.是什么意思？

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