The house is provided with solar panels for water heating and a high energy efficient device for ventilation.

这栋房子还配置着太阳能热水器和高效节能的通风设备。

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But the quality gap has shrunk as mobile device GPUs have become more energy efficient.

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They set every appliance and electronic device to the most energy-efficient settings.

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Actual operation and booting of the device is responsive, silent and energy efficient -- the unit is quick to fade the screen to black after going unused for a minute or so.

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