Hvernig á að dæma "thermionic valve"

• "thermionic valve" fram á Enska.

Merkingar og skilgreiningar á "thermionic valve"

Noun

electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

Samheiti:

• tube
• vacuum tube
• thermionic vacuum tube
• thermionic tube
• electron tube
• thermionic valve