The exterior skin also keeps west facing units cooler by acting as a screen and shading device.

外层的表皮同时也具有一定的遮阳作用，为西面的住户隔绝西晒。

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But then the second screen on did something even cooler.

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In addition to deviated number keys that glow white when depressed, the C630 also incorporates mixed materials, including a rubberized back-panel, a mirrored screen and a small joystick pad to provide an even cooler user experience.

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