A number of direct-current experiments also can be performed, using a 6-volt storage battery as a source of power.

一个直接电流实验次数也可以执行，以此作为动力源的6伏的蓄电池。

youdao

A number of direct-current experiments also can be performed, using a 6-volt storage battery as a source of power.

一个直接电流实验次数也可以执行，以此作为动力源的6伏的蓄电池。

youdao