But, if damaged surface, which will expose the steel surface and atmosphere reaction, the ego repair oxide "passivation," continued protection.
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if damaged surface
如果表面损坏
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Regularly check whether actions of inhalation, exhalation discs are flexible, and the sealing contact surface of leader and disc is damaged, if so, should be replaced immediately.
定期检查吸入、呼出阀盘动作是否灵活，导杆及阀盘接触密封面有无损坏，如有损坏应立即更换。
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