求翻译：收购IBM全球PC事业部后，联想有三个比较集中的研发基地，第一个是在美国的罗利，负责研发的组合管理，战略性的产品开发方面，包括前瞻性的开发，另外一个研发中心是在日本，主要是在笔记本开发。第三个研发中心在中国，整个开发布局也是一个全球化的布局。是什么意思？

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Global PC IBM acquisition, Lenovo Group, there are three more focused research and development base, and the first is in the United States, Raleigh, responsible for the research and development of portfolio management, strategy, product development, including forward-looking development, also a rese

After purchases IBM the global PC services department, the association has three quite centralized research and development bases, first is in US's Luo advantage, is responsible for combination management which researches and develops, strategic product development aspect, including forward-looking

After the acquisition of IBM Global PC business unit, Lenovo has three more focused research and development base, the first was in the United States in Raleigh, is responsible for the research and development of portfolio management, strategic product development, including development of forward-l

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