The surface treatment of the bridge fence is heating zinc dipping, anti rust function for more than 15 years.

桥梁护栏网表面处理为加热浸锌，防锈功能超过15年。

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So the only thing I could think of doing was to climb over (the fence on the side of) the bridge.

于是我所能想到做的唯一一件事就是爬过（边上有栅栏）大桥。

youdao

For vehicles, the more way out (bridge), there may be a serious consequence of the section, can choose to strengthen the highway fence.

对于车辆越出路(桥)外，有可能造成严重后果的区段，可选择加强高速公路护栏板。

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Padlocks have since sprouted from the Great Wall in China to the Brooklyn Bridge to the fence of a freeway overpass in Silicon Valley.

WSJ: Couples Adorn Bridges With Weighty Tokens of the Heart

Fence-sitting will prove as hard as bridge-building.

ECONOMIST: George Papandreou, flouting Greek tradition