Rich red and orange sunset is to be reflected on the concrete surface.

混凝土表面反衬出日落的红色和橘色。

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When planning a concrete creation, the first thing to look at is the concrete surface.

当规划一个具体的建立，首先要考虑的是混凝土表面。

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Strengthen maintenance of poured concrete. Prevent concrete surface free water from losing too quickly.

加强养护，防止混凝土表面游离水蒸发过快。

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In an effort to mimic the soft exterior of a real bed, Mr. Fischer coated one of the bed sculptures with white paint but then interrupted the smooth surface by pouring a pile of real concrete over it, weighing down one side of the sculpture's surface.

WSJ: Urs Fischer's Beds & Problem Paintings Show in Beverly Hills

But Konkola stadium itself looks like a relic from the 1950s, with rundown concrete bleachers and an uneven playing surface that left inspectors from world governing body, Fifa, distinctly unimpressed.

BBC: CHOOSE A SPORT

"When you replace soil and grass with concrete and asphalt, you alter the balance of energy that occurs at the earth's surface, " says Dr. Robert Bornstein, a professor of meteorology at San Jose State University in California.

CNN: In-Depth Specials - City Limits