Wear and tear to be prevented as well as damage, ingress of grit and dirt, water and oil, paint over spray, burning damages etc.

防止诸如破损、进入灰尘和污泥、水、油、油漆飞溅、烧损等损耗和危害。

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In 2009, water ingress and oil leakage accidents frequently occurred on the backup oil film bearing in no. 2 Rolling Plant of Angang, which severely restricted the normal production of the mill.

2009年，安钢第二轧钢厂频繁出现支承辊油膜轴承进水和漏油事故，严重制约了轧机的正常生产。

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