vacuum tube

vacuum tube读音音标

英 [ˈvækjuəm tju:b]

美 [ˈvækjuəm tub]

vacuum tube意思解释

n.

真空管，电子管；

英英释义

n.

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

同义词：tubethermionic vacuum tubethermionic tubeelectron tubethermionic valve

双语例句

用作名词(n.)Not any air gets into the vacuum tube.没有空气能进入真空管。No vacuum or picture tubes were broken.真空管或显影管都未破碎。In a radio tube there is a source of electrons.在电子管中，有一个电子发射源。A tube or a transistor can amplify an incoming signal.电子管和晶体管能放大输入的信号。