因此查里斯·福思想出了一个创造性的解决方案：如果能够在失效的轴承四周多放一些润滑油脂，这样可能会使轴承的运转情况会有所好转。

So Charles Force thought of a creative solution: If he could get more grease around the failed bearing, it would probably be fine.

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轴承上必须有密封件，防止外部的灰尘和水分进入，也防止轴承内部的润滑油脂外漏。

The bearing must be equipped with seals that are able to keep dust and water out and the grease inside the bearing.

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