The absolute summability of autocorrelation sequence imposes only the continuity constraint on the power spectrum.
另外,绝对可加性

数列之假设只是意指在频谱中必须连续。
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话 I promise I'll return the favour - this means that you will do the same favour for this person in the future, so, for example, when he goes on holiday you'll feed his cats… you'll 'return the favour'.
I promise I’ll return the favour (我发
我
还你这个人情的),意指你将
为别人做同样的事情,例如,当他度假的时候,你帮他喂猫——这就是所谓的还人情。
In the 1970s, this phenomenon was common enough that the term " queen bee" was used to describe a woman who flourished in a leadership role, especially in male-dominated industries, and who used her position to keep other female " worker bees" down.
20世纪70年代,这种现象已经相当普遍,以
人们用“蜂后”这个词来描述一个在领
层、尤其是在男性主
行业的领
层快速成长的女性,意指她用自己的地位压制着其他的女性“工蜂”。
Across the street from the Capitol building, protesters gathered at the Supreme Court, chanting Kavanaugh! No! and holding signs that said I believe Christine, in reference to Kavanaugh's accuser, Christine Blasey Ford.
在国
大厦对面的街道上,抗议者聚集在最高法院前,高喊“卡瓦诺!不!”,举着写着“我相信克里斯汀”的标语,意指卡瓦诺的原告克里斯汀·布拉西·福特。