The results show that Chinese foreign exchange reserve long-term equilibrium demand and actual scale inconsistencies, margin over time constant changes, and more than a moderate scale.

结果表明我国外汇储备长期均衡需求与实际规模并不一致，差额随时间推移不断变化，并且超过了适度规模。

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If these premiums are constant over time, the central bank can still determine long-term interest rate via changing (market agents' expectations regarding future) short-term interest rates.

如果这些溢价随时间保持不变的话，央行仍然可以通过调整(市场参与者对未来预期的)短期利率来左右长期利率。

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So, for example, if we're to hold the time constant, this makes it a lot simpler of an equation, because what we can end up doing is actually crossing out this whole term here.

比如说，如果我们把时间，定为常数，这使得方程，大大简化，因为我们可以把，这一项划掉。

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Dictionaries are implemented using a magic technique called hashing, which we'll look at a little bit later in the term, which allows us to retrieve keys in constant time.

散列法的内容,此方法可以让我们在线性,时间内检索到键,因此字典的大小并不重要了。

麻省理工公开课 - 计算机科学及编程导论课程节选