正如图画所生动的描述，3个小男孩和1个小女孩在玩着跷跷板。
1·Dolly run on the teeterboard exactly, our design adopts SCM-AT89C51 least system as dolly's measure and control system.
本设计为使电动车在跷跷板上按要求准确运行采用了单片机at89c51最小系统作为电动车的检测和控制系统。
2·There is a cliff in the picture, on whose top is a teeterboard.
图中画了一个悬崖，在悬崖上有个跷跷板。
3·In order to let the Electromotion dolly run on the teeterboard exactly our design adopts SCM-AT89C51 least system as dolly's measure and control system.
本设计为使电动车在跷跷板上按要求正确运行采用了单片机at89c51最小系统作为电动车的检测和控制系统。
4·In order to let the Electromotion dolly run on the teeterboard exactly, our design adopts SCM-AT89C51 least system as dolly's measure and control system.
本设计为使电动车在跷跷板上按要求准确运行采用了单片机at89c51最小系统作为电动车的检测和控制系统。