顶部中央是一个玻璃质圆顶

The centre of the top is a glass dome

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表盘的中央是一块烟灰色的玻璃。

At the center of the dial is a piece of smoky glass.

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表盘的中央是一块烟灰色的玻璃。

At the center of the dial is a piece of smoky glass.

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