空间站至少可以工作15年，但如果对其磨损或毁坏的零件进行维修和更换的话，它的寿命能维持数十年。
The station has been designed to operate for at least 15 years. But it could last for decades if parts are repaired and replaced as they wear out or are damaged.
检查任何严重磨损的零件，如有需要将其更换。
Check for any seriously worn parts and replace if necessary.
检查水泵轴的油封环，如磨损严重应更换新件。
Inspection of the pump shaft seal ring, such as wear parts should be replaced.
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