晶体收音机的结构不像电子管收音机那么复杂。
A crystal receiver is a less complicated structure than a valve receiver.
其中一种带负电，实际上我们称它为电子，熟悉半导体收音机的爱好者都知道机器里面的电子管中含有大量的这种电子微粒。
One is negative electricity, being, in fact, the tiny particle called the electron, familiar to radio fans as one of the particles vast swarms of which operate radio vacuum tubes.
其中一种带负电，实际上我们称它为电子，熟悉半导体收音机的爱好者都知道机器里面的电子管中含有大量的这种电子微粒。
One is negative electricity, being, in fact, the tiny particle called the electron, familiar to radio fans as one of the particles vast swarms of which operate radio vacuum tubes.
应用推荐