How to make reasonable protection of bridge is the issue we need to explore.

如何对桥梁进行合理的防护是我们现在需要探讨的问题。

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This paper discusses corrosion principle and current protection methods of concrete, introduces the important application of concrete structure in the bridge building?

论述了混凝土的腐蚀机理及通用的防护方法，介绍了钢筋混凝土结构在桥梁建设中的重要应用。

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The beam web, which extends over the entire bridge, is built of a trapezoidal, for reasons of corrosion protection hermetically welded hollow section.

梯形梁延伸到整个大桥，主要是为保护密封焊接空心截面不被腐蚀。

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Their mother's squawks competed with the din of morning-rush bridge traffic as Chris Nadareski, a wildlife biologist with the New York City Department of Environmental Protection, gently lifted the fluffy chicks out of their nesting box and used pliers to fasten metal bands around their legs.

WSJ: 4 falcon chicks living on NY-NJ bridge are banded