These materials must be avoided in cryogenic service.
低温设施要避免使用这些材料。
Cryogenic liquids and their vapors can rapidly freeze human tissue and can cause many common materials such as carbon steel, rubber, and plastics to become brittle or even break under stress.
低温液体和它们的蒸气能够迅速冷冻人体组织，而且能导致许多常用材料，如碳素钢、橡胶和塑料变脆或者甚至在压力下破裂。
The effects of the cryogenic treatment on the wear resistance of tool steel, other steels and cast iron materials were discussed.
阐述了深冷处理对工具钢、其他钢铁材料及铸铁材料耐磨性的影响。
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