“电子管”造句

电磁波是由一种称为速调管的微波电子管产生的.
The electronmagnetic wave is produced by microwave tubes called klystrons.

这些工厂生产电子管 、 晶体管 、 收音机和电视机.
These factories produce tubes, transistors, radio sets and TV sets.

这些放大器是用微型电子管制成的.
These amplifiers have long been made with tiny election tubes.

• #电子管