The growing prevalence of the disease is often attributed to urbanization, fast-food diets, smoking and sedentary lifestyles characteristic of Western societies.

心脏病发病率攀升的现象往往被归咎于城市化、快餐饮食、吸烟以及久坐不动等西式生活方式。

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For peak load unit, its process model and structure parameters have obviously fast time-varying characteristic while load changing.

对于调峰机组，当负荷变化时机组的过程模型甚至结构参数都具有明显的快时变特性。

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Compared with the traditional lookup table adaptive filter, the new configuration can synthesize a signal response with a long time delay and has the characteristic of fast convergence speed.

这种新的结构与传统的查表结构自适应滤波器相比，具有复盖较长时延的信号响应和收敛速度快的特点。

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and we like log algorithms, because they're really fast. A typical characteristic of a log algorithm is a pro-- or sorry, an algorithm where it reduces the size of the problem by a constant factor.

并且我们也很喜欢对数算法,因为它很快,对数算法的典型特性是高速，哦，抱歉，是他能以常数因子的速度,降低问题的大小，很明显。

麻省理工公开课 - 计算机科学及编程导论课程节选