It is perhaps easiest to understand the reaction in the case of the toy balloon.

也许用玩具气球的情况最容易说明这种反作用力。

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The utility model discloses an automatic inflatable toy balloon, which belongs to the technical field of stationery and sport goods and comprises an air chamber.

本实用新型公开了一种自动充气玩具气球，属于文体用品技术领域。

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