摘要：时域和频域作为信号的基本性质，从不同方式来分析信号。

Abstract:Time domain and frequency domain as the basic nature of the signal from the different ways to analyze the signal.

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在这样的环境下，减息只有作为信号的价值，而不会迅速转化为实际的借钱成本。

In that environment, a rate cut would have signalling value but would not rapidly translate into actual borrowing costs.

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它预测，最佳的时机，莫过于作为信号的条件刺激，出现在需要你做准备的，非条件刺激之前。

It predicts that the best timing is when the conditioned stimulus, which is the signal, comes before the unconditioned stimulus, which is what you have to prepare for.

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It predicts that the best timing is when the conditioned stimulus, which is the signal, comes before the unconditioned stimulus, which is what you have to prepare for.

它预测，最佳的时机,莫过于作为信号的条件刺激，出现在需要你做准备的，非条件刺激之前。

耶鲁公开课 - 心理学导论课程节选

Now, how they carry signals is that these neurotransmitters act as ligands.

它们传递信号的原理如下,神经递质作为一种配体

耶鲁公开课 - 生物医学工程探索课程节选