An electron tube or a vacuum tube.

电子管或真空管。

FEP Liner suitable in vacuum tube.

家有套在真空管合适。

Diangong Solar vacuum tube heat collector.

电工太阳能真空管集热器。

Diangong heat tube Vacuum tube heat collector.

电工太阳能热管真空管集热器。

Shockley, it displaced the vacuum tube in many applications.

晶体管在许多用途上已取代了真空管。