求翻译：PC业务经过这么长时间的竞争和发展，边际利润越来越薄，专注于PC业务难以带动公司有较大的突破 ；与IBM形成战略联盟后，两家公司在企业文化、各种资源方面的融合存在着诸多的不确定因素 ；收购IBM的PC事业部后，部分IBM原有的客户对联想持怀疑态度，再加上竞争对手加大了对这一块客户资源的争夺力度，这必然会使一部分客户流失 ；是什么意思？

pc business after such a long competition and development, profit margins are increasingly thin, focus on pc business is difficult to drive the company has a major breakthrough; forming a strategic alliance with ibm, the two companies in the corporate culture, a variety of resources integration of t

PC business after such a long time and the development of the competition, and the marginal profit margins are thin, it is difficult to focus on business-driven PC companies have a large breakthrough; and IBM form a strategic alliance, the two companies in the corporate culture, the integration of v

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PC business after so long time of competition and development, marginal profit increasingly thin, focused Yu PC business difficult to led company has larger of breakthrough; and IBM formed strategy Union Hou, two home company in enterprise culture, and various resources aspects of fusion exists with

The PC service passes through the such long time competition and the development, the marginal returns is more and more thin, concentrates leads the company the PC service to have the big breakthrough%2