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。
2
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。
3
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.