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t470p 40a1 p50底座扩展t440sx250 坞 t450x240 底 x270t460s
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t460sx250 t470p t440sx240 坞 x270p50 40a1底底座t450扩展
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兼容X270T460T470P电池
T440SX250电脑适配器 笔记本电源X240S5方口S3 E431方口
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