| 字词 | 失效 |
| 释义 | 失效 动lose efficacy/effectiveness; cease to be effective; be no longer in force; become invalid 自动失效automatically cease to be in force 这药已经失效。The medicine no longer has any effect. / This medicine has lost its strength. 超过期限，专利权就会失效。Beyond the time limit, patent rights will lose their efficiency. 他的保险单已失效。His insurance policy has lapsed. 失效产权 名bad title 失效磁道 名计算机dead track 失效法律 名expired law 失效日期 名expiry date; date of expiration 失效寿命 名burn-out life 失效弹簧 名dead spring 失效条款 名invalid clause 失效条约 名void treaty 失效支票 名stale cheque |
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