If a squirrel should jump or fall out of a tree the tail can be spread out like a small parachute to slow the squirrel down.

如果松鼠跳跃或者从树上掉下来，尾巴能够像降落伞一样展开，使松鼠慢慢下落。

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A water rocket automatically opening the parachute, including a rocket head, a storage bin, a power bin, a tail wing, a parachute, a tether 1, and a tether 2.

一种能自动打开降落伞的水火箭，包括火箭头、贮藏仓、动力仓、尾翼、降落伞、系绳1、系绳2。

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A water rocket automatically opening the parachute, including a rocket head, a storage bin, a power bin, a tail wing, a parachute, a tether 1, and a tether 2.

一种能自动打开降落伞的水火箭，包括火箭头、贮藏仓、动力仓、尾翼、降落伞、系绳1、系绳2。

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