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- The individual parameter for evaluating overhauled motor vehicles are: mean time to first failure(MTTF),mean time between failures(MTBF),equivalent failure rate(D),ect. 可靠性單項指標的確定 :平均首次故障里程 (MTTF) ,平均故障間隔里程 (MTBF) ,當量故障率 (D) ;
- Using the property of Markov at the points of replacement period, a model of de termining the optimal period is developed with objective of maximizing the mean time to first failure of system. 利用在更換周期點(diǎn)上具有的馬爾可夫性質(zhì)，以系統首次故障前平均工作時(shí)間最大為目標建立了確定最佳更換周期的模型。
- Based on the comprehensive evaluation indicator system constructed (Mean Time To First Failure MTTFF; 根據所構建的綜合評價(jià)指標體系（平均首次故障間隔時(shí)間MTTFF；
- 2.reliability indicator includes Mean Time To First Failure (MTTFF) and Mean Time Between Failure (MTBF); 以“在規定的時(shí)間間隔內出現的”故障次數來(lái)表示的一種故障閥值。
- mean time to first failure 平均首次失效前時(shí)間
- How do you change Greenwich mean time to Beijing time? 怎么計算格林尼治時(shí)間對應的北京時(shí)間?
- The accident was caused by human error. 這宗事故是人為過(guò)失造成的。
- Most of the problems were due to human error. 多數問(wèn)題都是人為錯誤造成的。
- I need some time to orient my thinking. 我需要一些時(shí)間來(lái)使我的思想適應。
- The loss was due to human error. 這次任務(wù)的失敗是認為的錯誤導致。
- The mean time to repair (MTTR) is one of the main indexes for system's reliability analysis and risk analysis. 串聯(lián)系統的特點(diǎn)是串聯(lián)元件中任一部分（元件）失效都可導致系統失效。
- The accident was the result of human error. 這事故是人為的錯誤造成的。
- A transistorize radio takes no time to warm up. 晶體管收音機不需要預熱時(shí)間。
- Novel flexible message structures to allow reduction in the Time to First Fix (TTFF) and exploitation of satellite path diversity. 采用全新的可變電文結構，能夠減少“首次定位時(shí)間”（TTFF），并可利用衛星的路徑分集。
- Also the temperature, current density, stress gradient and alloy elements have strongly effects on MTF (mean time to failure) of electromigration. 溫度、電流密度、應力梯度、合金元素及工作電流模式等也對電遷移壽命有重要影響。
- Reliability of each individual node is enhanced by reducing its MTTR (Mean Time To Repair).Therefore, the availability of the whole system is improved. 通過(guò)測試和分析，這種快速的自動(dòng)恢復機制通過(guò)縮短單結點(diǎn)的平均修復時(shí)間MTTR而提高了單結點(diǎn)的可用性，從而也提高了整個(gè)系統的可用性。
- It may take a long time to find a solution to the problem. 也許要花很長(cháng)時(shí)間才能找到解決這個(gè)問(wèn)題的辦法。
- Will 2003 be the year of the first human clone? 人類(lèi)第一個(gè)克隆人會(huì )在2003年誕生嗎?
- It took him long time to smooth away perplexities. 他花了好長(cháng)時(shí)間才消除了困惑。
- It is time to pony up on that bill. 是照帳付錢(qián)的時(shí)候了。
