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- Abstract: The urban mass transit usually adopts DC traction power supply system.The max traction current and its durative time alter with the number of trains in running rail. 摘要:城市轨道交通一般采用直流牵引供电系统,走行轨上最大牵引电流及其持续时间会随着供电区间内牵引列车数的不同而异。
- The purified sporulated oocysts were sonicated at a power setting of 200 W,durative time 5s,interval time Ss,60 times,and 3 cycle. 纯化的孢子化的卵囊用超声波裂解,功率设置为200W、工作时间5秒、间隙时间5秒、工作次数60次,3个循环。
- The primary endpoint was objective response rate(ORR), and the second endpoints were the durative time of remission(DTR), time of tumor progression(TTP), time of treatment failure(TTF), safety assessment and adverse events. 主要终点指标是客观 肿瘤缓解率(ORR),次要终点指标是肿瘤缓解持续时间(DTR)、肿瘤进展时间(TTP)、肿瘤治疗失败时间(TTF)、安全性评估 和毒副反应。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久,就会发酵。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨,他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- I need some time to orient my thinking. 我需要一些时间来使我的思想适应。
- A transistorize radio takes no time to warm up. 晶体管收音机不需要预热时间。
- At that time he had two helpers. 当时他有两个助手。
- I'm sorry to obtrude on you at such a time. 我很抱歉在这个时候打扰你。
- I referred to my watch for the exact time. 我看了一下手表好知道准确的时间。
- God mete out justice in his own good time. 羞恶自有报,只争迟与早。
- I spend most of my time scouting around for book. 我把大部分时间都用来找书了。
- It may take a long time to find a solution to the problem. 也许要花很长时间才能找到解决这个问题的办法。
- The teacher let him off the hook with a warning this time. 这一次老师放过他,只给了一个警告。
- I'll overlook your lateness this time. 我可以不计较你这一次的迟到。
- He get seasick every time he crosse the channel. 他每次渡英吉利海峡时都晕船。
- It took him long time to smooth away perplexities. 他花了好长时间才消除了困惑。