水电站金属结构物受到大气、水、泥沙的腐蚀破坏，必须对其进行周期性检修和防腐蚀保护。

It is essential to conduct periodic overhaul and corrosion protection for the metal structures used at hydropower station, since they suffer the combined corrosion by atmosphere, water, and silt.

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水电站金属结构物受到大气、水、泥沙的腐蚀破坏，必须对其进行周期性检修和防腐蚀保护。

It is essential to conduct periodic overhaul and corrosion protection for the metal structures used at hydropower station, since they suffer the combined corrosion by atmosphere, water, and silt.

youdao