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关注：1
2013-05-23 12:21
求翻译：市电供电时为正弦波，电池供电时为方波是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
市电供电时为正弦波，电池供电时为方波
问题补充： |
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2013-05-23 12:21:38
Electricity supply is a sine wave, square wave when the battery powered
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2013-05-23 12:23:18
Commercial power supply, battery power supply for the Sine wave, square wave
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2013-05-23 12:24:58
When city electricity power supply is the sine wave, when the battery power supply is the square-wave
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2013-05-23 12:26:38
When the mains power supply for a sine wave, battery power is the square-wave
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2013-05-23 12:28:18
The city electricity is a sinusoidal wave while supplying power, the battery is a square wave while supplying power
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