external corrosion prevention coating
external corrosion prevention coating
外防腐涂层
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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External corrosion coating is a main corrosion prevention measure of buried steel pipeline, with cathodic protection being complementary.
外防腐涂层是埋地钢质管道主要防腐手段，阴极保护是涂层防腐的补充手段。
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