如果外部密封破损或损坏，不要购买。

Do not purchase if outer seal is broken or damaged.

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本质量保证只包括更换外部密封的成本。

The warranty shall cover the cost of replacement of the outer seal only.

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油箱应该在外部密封失效、设备关闭的一段时间内具有防潮屏障的功能。

The oil reservoir shall act as a barrier to trap moisture and provide sufficient time for a planned shutdown in the event of an outer seal failure.

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