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是否有能解DTMF码的MODEM?
2007-11-3 13:19
- 通信技术
- 10
- 2729
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5v-12vDC宽电压输入转9vDC,有没有什么好的方法?
2007-10-18 14:46
- 电源技术
- 8
- 2544
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请教:哪位大虾用过CMX909?
2007-10-17 11:20
- 通信技术
- 4
- 1785
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请推荐LDO
2007-10-18 14:43
- 电源技术
- 3
- 1802
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