稳态输出是和海流同周期的正弦波，稳态输出的幅值也与海流最大流速成正比关系。

The steady state is a sine wave with the same period of tide, whose amplitude is also linear with the maximum velocity of tide.

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通过对算得的各关联度进行比较，得出排队长度和延误两个指标都同周期时长有较大的灰关联关系。

The result shows that vehicular queuing length, delay and stop rate at intersections have significant gray correlation to signal cycle time.

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同系列的，同周期的属于或是一系列有机化合物的，其中每一节都比相连的前一节增加一常量，尤其是ch 2组。

Belonging to or being a series of organic compounds each successive member of which differs from the preceding member by a constant increment, especially by an added CH2 group.

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So if we consider lithium, potassium, and sodium, they're all together in the same group on the periodic table, knowing what we do about biology we can immediately think of sodium and potassium, or even just knowing what you know about table salt, for example, that these are two elements that we find, and particularly in the ion form in very high concentrations in our body.

我们来考虑一下锂，钾和钠，它们都在周期表中的同一族里，想要知道我们将元素周期律,用到生物学会怎么样，我们首先想到的就是钠和钾，甚至只需要知道食盐，我们发现它们是以很高浓度的离子形式,存在于我们体内的两种元素。

麻省理工公开课 - 化学原理课程节选