求翻译：作者应用SWOT分析对青岛市发展虚拟物流的优势与劣势、机会与挑战进行了系统分析，提出青岛市虚拟物流发展的相关对策，逐步实现向虚拟物流领域延伸，不断扩大利润来源，以带动中心城市新一轮的发展。是什么意思？

By application of SWOT analysis for the development of virtual logistics of Qingdao strengths and weaknesses, opportunities and challenges for the systematic analysis to the development of Qingdao, virtual logistics-related measures, the progressive realization of the virtual fields of logistics, th

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The author developed the hypothesized physical distribution superiority and the inferiority, the opportunity and the challenge using the SWOT analysis to Qingdao has carried on the system analysis, proposed the Qingdao hypothesized physical distribution development related countermeasure, realized g

Author application of SWOT analysis on developing virtual logistics in Qingdao, strengths and weaknesses, opportunities and challenges for systems analysis, make virtual logistics development countermeasure in Qingdao, gradually extending to the field of virtual logistics, expanding the source of pr

By application of SWOT analysis for the development of virtual logistics of Qingdao strengths and weaknesses, opportunities and challenges for the systematic analysis to the development of Qingdao, virtual logistics-related measures, the progressive realization of the virtual fields of logistics, th