We spend nearly three hours at Xiao Niu's Motorcycle Repair, and our bikes are mechanically sound again.

我们在小牛摩托车维修店转悠了一共三个小时后，终于把车维修好了。

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"Three deer is better than two," he thought, as he prepared. Then he located the source of the sound and shot at a shadow in the grass.

“三只鹿比两只还要好，”他一边准备一边想。他确定了声音的来源后，向草里那个黑影射了一箭。

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At last, the cases of three dimensional surrounding sound systems with cube array and triangular pyramid array models by using these formulas are illustrated for example in this paper.

文中导出了正方排列和正三角梭锥（正四面体）排列两种型式的三维（立体）声系统作为这组公式应用之例。

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Well,you can just--an engineer will just sit there and isolate that second of sound and then give a "times three" command and "boom," well,look at Pavarotti hold out that note.

嗯，你可以想象，工程师会只坐在那里，分离出的第二个声音,然后给了三拍命令和砰“,好吧，看帕瓦罗蒂能拖出那个音。

耶鲁公开课 - 聆听音乐课程节选

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