indestructibility       
noun [ U ] uk/ˌɪn.dɪˌstrʌk.təˈbɪl.ə.ti/ us/ˌɪn.dɪˌstrʌk.təˈbɪl.ə.t̬i/
 不可破坏性
the fact that something is impossible to destroy or break
  the indestructibility of their relationship
 Precious metals are valued for their usefulness, rarity, and indestructibility.  贵金属因其有用性、稀有性和不可破坏性而值钱。 
 See: indestructible
 - More examples
 - Polychlorinated biphenyls, PCBs, were once popular in industrial use because of their seeming indestructibility.
 - She bought the truck for its relative indestructibility.
 - The camera’s near indestructibility is a key selling point.