This article introduces the manufacture and application methods of the projection experimenter of "Closed Circuit Ohm Law".

介绍了闭合电路欧姆定律投影实验器的研制和使用方法。

youdao

This article introduces the manufacture and application methods of the projection experimenter of "Closed Circuit Ohm Law".

介绍了闭合电路欧姆定律投影实验器的研制和使用方法。

youdao