... SDU Signal Distribution Unit 信号分配设备 SDU Source Data Utility 源数据实用程序 SDU Spectrum Display Unit 光（频）谱显示仪 ...
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source data utility
源数据实用程序
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The EcoHub app works by pulling overall home energy usage data, provided by an energy data source, such as a utility or smart meter company.
ENGADGET: Chevy Volt EcoHub app tells drivers how little they pay to charge, goads them into staying green (video)
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