And when the sparker ignites, the reaction rockets the bot to a height of 30 centimeters.

当火花点燃时，反应会将机器人推到 30 厘米的高度。

The researchers attached an electrolysis device to the robot, as well as an electric " sparker" When the apparatus is activated, the robot creates a buildup of gas in a chamber beneath itself.

研究人员在机器人身上安装了一个电解装置和一个电“火花”。当装置被激活时，机器人会在其下方的腔室中产生气体。