caution corrosion
谨慎腐蚀
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Weathering steels should be used with caution as their resistance to corrosion is often significantly reduced by mechanical wear att he surface.
耐候性钢材应谨慎使用，因为表面机械磨损经常会大幅度降低其抗腐蚀能力。
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