... 失效 1.(失去效力) lose efficacy; lose effectiveness; cease to be effective 这药已失效了。 the medicine no longer has any effect.2.(无效) (of a treaty, an agreement, etc.) be no longer in force; become invalid 条约的失效 voidance; voidness of treaties; 一张失效的支票 an invalid cheque; 自动失效 automatically cease to be in force; 这张证明已失效。 this certificate is invalid.; 失效保险 fail-safe; 失效检验 failure detection; 失效率 [物理学] failure rate; 失效提单 stale bill of lading; 失效支票 stale check; 失效准则 failure criteria 音质失真 tonal quality distortion 实质失火危险 substantial fire risk ...

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