invalidation [ɪnˌvælɪ'deɪʃn]

例句:

• This alleviates step is very fast with respect to invalidation.
  这个缓解措施很快就失效了.
  来自互联网
• The making of false statements could result in the invalidation of the contract.
  提供虚假资料可能导致合同失效.
  
• It discuses the relation of risk, invalidation probability and reliability.
  概述了可靠度 、 失效概率及其与风险(不确定性)的关系.
  
• This would allow for invalidation of offending contractual terms for everyone in the market.
  来自WSJ
• My hypothesis is that there is no travel at all through the intervening distance and thus no invalidation of Einstein's position.
  来自SA