Power tower systems (also known as "central receiver" systems) use a field of large, flat mirrors to track and reflect sunlight onto a receiver mounted at the top of a tall tower.

电力塔系统（也称为“中央接收器”系统）的使用领域广泛，在高塔顶部的接收器上安装平面镜，用于追踪和反射光。

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The front of ancient bronze mirrors has flat and concave surface .

古代青铜镜的镜面有平面的，也有凸面的。

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The buildings look like boxes with flat roofs, sharp corners and glass walls that act as mirrors. You do not feel invited to enter them.

建筑物像箱子，有平顶、尖角，还有充当镜子的玻璃墙，感觉不到欢迎你进去。

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The side-view mirrors on most cars are flat, and while they give drivers an accurate sense of the distance of cars behind them, they have a narrow field of view, leaving a space behind the vehicle -- the blind spot -- that a driver can't see.

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If it succeeds, the markets for his liquefying gallium mirrors could be enormous: applications to lasers, sensors and flat-screen displays have already been identified.

ECONOMIST: Optical communications: Swish switches | The

The water closet really makes a splash each has high-tech automated Toto toilets, extra-deep tubs, flat-screen televisions, towel warmers, heated floors and counters, de-fogging mirrors and, of course, a rain shower stocked with high-end toiletries.

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