A fox USES its tail (or "brush") as a warm cover in cold weather and as a signal flag to communicate with other foxes.

狐狸用它的尾巴(或“毛刷”)在冷天时盖上保暖，同其他狐狸交流时亦可用来做信号旗。

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If it is a snake (which cannot) they use tail-flagging to signal its presence.

如果是一条蛇(没有听力)，它们就摇尾发出信号。

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This determines the adaptation time of the analysis network ("forgetting factor"). The setting of this parameter should be approximately equal to the reverb tail length of the signal.

这个叫t[适应性]的参数是用来决定网络分析的适应时间的。这个参数的调整有点大约近似于调整那个声音信号所带混响的尾巴长度。

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Meanwhile, just as YouTube is shifting gently away from user-generated content and the long tail, Apple is making key changes that could signal something significant.

FORBES: Apple: Building A YouTube Killer?

Each segment has an electromagnet attached to it, and these are activated by a current that flows from head to tail in more or less the way that a nerve signal flows in a real animal.

ECONOMIST: Robots