美国证券交易所航空类股指数昨日午盘上涨10%。
The American Stock Exchange airline index was up 10 per cent at lunchtime yesterday.
研究了一类带有指数故障过程的故障趋势预测问题。
A fault trend prediction problem for a class of exponential fault process is studied.
主要讨论了一类扰动系统的指数稳定性问题 。
The study of an exponentially stable character of perturbed system at the point of equilibrium;
主要讨论了一类扰动系统的指数稳定性问题 。
The study of an exponentially stable character of perturbed system at the point of equilibrium;
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