求翻译：如果某一零部件已过度磨损在重新换件装配后需检查其配合情况，并记录其位置、组装顺序，如有异常外物附着在某一零件，应保存此物以供参考。是什么意思？

If certain parts have been excessive wear after the re-exchange the pieces of the assembly need to check with the situation, and record its location, the assembly sequence, if unusual foreign objects attached to a part, this material should be saved for reference.