The table is easily damaged parts, damage is the most common cause of meter bar corrosion, especially some Laobiao, corrosion may cause thinning and break a table.
表把也是比较容易损坏的部件，最常见的损坏原因是表杆锈蚀，特别是一些老表，锈蚀会造成表把杆变细而折断。
When NASA built Atlantis, they decided to make a complete set of spare parts, with the idea that if any shuttle was damaged, it could easily be repaired.
NASA当初在建造亚特兰蒂斯号时，同时决定打造一整套的备用配件，他们考虑到如果飞船损坏的话，这样维修起来很方便。
Tolerances for press fits can become very critical because parts can be easily damaged by attempting to press fit them if there is an excessive difference in their mating dimensions.
对于压配合来说，对公差极为挑剔，因为如果结合件的配合尺寸相差过大的的话，那么在试图强行压配到 一块时极易将其损坏。
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