It is more normalized thereby avoiding data redundancy and saving storage space.
更加符合范式，从而可以避免数据冗余和节省存储空间。
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PowerDock 5 is the ultimate space-saving, countertop charging and storage solution for up to 5 iPads.
ENGADGET: Griffin launches PowerDock 5 multi-device charging platform and ChargeSensor adapters
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