You see, last night I ran some tests to determine exactly what frequency Shade would have to be using to receive the tree's responses in that particular timbre.

你瞧，昨晚我进行了几项测试，以便确定薛德会使用怎样的频率来接收大树的响应。

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That night, the researchers measured one particular sleep phenomenon: the brief bursts of high-frequency waves known as “sleep spindles.”

那天晚上，研究人员研究了一种特殊的睡眠现象：出现的短暂高频率脑电波，即众所周知的“睡眠纺锤波”。

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At night, the ripples are accentuated by dynamic lighting activated by the frequency and intensity of the China Sea tide.

夜幕降临，南海深处涌动莫测的潮汐，在窗前投下活力无限的粼粼波光。

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These travelling waves occur hundreds of times a night, and most commonly at a frequency, 1 cycle per second, which has been shown to depress the activity of synapses.

ECONOMIST: Memory formation

The device recognizes a signal that is "hidden" in a broadcaster's frequency and automatically sends the information back to Arbitron every night.

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