轮换: rotate; take turns; alternat ...贮备: store up; have in reserve; s ...及: reach; come up to失效: lose efficacy; lose effectiv ...期: designated time观察: observe; watch; survey; obse ...贮备轮换: rotation of stock失效期: beyond-use date; exp date; expiration date; expiry date定期观察: routine observation非定期观察: casual observation耗损失效期: wear out failure period; wear-out failure period老化失效期: loss failure period偶然失效期: constant failure period失效期权: lapsed option损耗失效期: wear out failure period早期失效期: debugging period; earlier failure period; early failure period正常失效期: normal failure period次要潮期观察站: secondary tide station触碰失效期权: knock-out option贮藏与失效期: storage and duration of efficacy失效日期，有效期限: expiration date (expiry date)早期失效期 调整期: debuggingperiod是一种评定失效可能性及失效影响的分析技术: dfmea贮备: store up; have in reserve; save [hoard] for future need; lay aside◇贮备技术 redundancy technique; 贮备量 stockage; 贮备水量 water storage capacity老化故障期 老化失效期: lossfailureperiod
