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concrete bed
This column stands on a solid concrete base.
这个柱子立在坚固的水泥地基上。
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The concrete base of the library is cast on a bed of large rocks gathered on-site.
该混凝土图书馆以大块的岩石为地基。
It sits on top of a 7-foot-deep concrete base with a dense mesh of reinforced steel.
它的基础是7层的混凝土，并用密网格的钢筋加固。
The shoe monument, made of fiberglass and coated with copper, consists of the shoe and a concrete base.
CNN: Shoe-throwing monument removed from Iraqi orphanage
This gives the attendees some concrete trends to base some of the discussions on.
FORBES: Reasons To Hope
Among the improvements are concrete "splash pads" on the protected sides, meant to prevent the earthen levee from eroding around the base of the concrete flood walls that sit atop them.
CNN: Concerns about New Orleans-area levee ease
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