-
Tube pentode with directly or indirectly heated cathode.
具有直接或间接加热的阴极的电子管五极管。
youdao
-
Tube triode with directly or indirectly heated cathode.
具有直接或间接加热的阴极的电子管三极管。
youdao
-
Tube tetrode with directly or indirectly heated cathode.
具有直接或间接加热的阴极的电子管四极管。
youdao