electron tube static characteristic

例句：

1. 1.The electron tube was the first electronic device invented by Edison.
   电子管是爱迪生发明的第一个电子器件。
2. 2.The electron tube is used in television sets and radios.
   电子管用于电视机和收音机中。
3. 3. The electron tube has a significant impact on the development of modern electronics.
   电子管对现代电子的发展产生了重大影响。