2009 年是家电下乡政策在全国范围内推广实施的第一年，这一年，彩电限价从 2000 元提高到了 3500 元，无数农村消费者就趁着这波国补，把家里的大屁股电视换代成了平板电视。
Entangled quantum memories are used in a quantum network of silicon–vacancy centres in diamond nanocavities to experimentally perform non-local phase measurements.
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perform (sometimes completely free). Moreover, they present no load