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笔记本电源的重量通常在200克～500克之间,所以不少人都是买了本本后希望再配一个电源,这样家和单位或是学校之间,只带一个本本即可。
Notebook power is usually between 200 grams to 500 grams, so many people are buying books and hope to match a power supply, so that home and school or school, with only a notebook can be.