The efficiency of noise reduction of curved surface at Acoustical shielding exit is better in comparison with Plain surface.

曲面型噪声遮蔽出口的降噪能力要好于平面型出口。

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Inside the saltpan, the land surface is uneven. Areas shaped like sloppy teardrops rise above the surrounding plain.

盐田内部的地表凹凸不平，巨大的泪滴状隆起为周围的平原所环绕。

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The surface of the reinforcement may be plain, ribbed or indented .

钢筋的表面可以是光圆的， 带肋的，或者是锯齿状的。

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On the issue of storms affecting more of the earth's surface, the worriers are, according to the models, just plain wrong.

ECONOMIST: Eye on the storm | The