It is perhaps easiest to understand the reaction in the case of the toyballoon.
也许用玩具气球的情况最容易说明这种反作用力。
2
The utility model discloses an automatic inflatable toyballoon, 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。
3
We produce various kinds of inflatable products, including arch, balloon, cartoon toy, Christmas, air dancer, slide, castle, lantern pole, inflatable tent, etc. Welcome your inquiry.