本文主要研究重要的动力来源蓄电池的智能充电器硬件设计与实现。
This article on the important impetus for the smart battery charger hardware design and implementation.
一个主要的不便，这个MP3播放器是缺乏可充电电池。
One major inconvenience of this MP3 player is the lack of rechargeable battery.
一个主要的不便，这个MP3播放器是缺乏可充电电池。
One major inconvenience of this MP3 player is the lack of rechargeable battery.
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