The characteristics of a TM card and its reading-writing circuit and software program are discussed in detail, and a design of TM card watt-hour meter is introduced in brief.
详细讨论了TM卡的特点及其读写电路和软件程序，并简要介绍了一种TM卡收费电表的设计。
The characteristics of a TM card and its reading-writing circuit and software program are discussed in detail, and a design of TM card watt-hour meter is introduced in brief.
详细讨论了TM卡的特点及其读写电路和软件程序，并简要介绍了一种TM卡收费电表的设计。
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