| 释义 |
thermionic valve θə:miˈɔnikvælv 短语¹⁴⁴⁹⁷²⁺²
基本英英近义反义
n.物热离子管;热阴极电子管亦作valve
Noun:
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope近义词 tube管子vacuum tube真空管electron tube真空管thermionic tube物热离子管…thermionic vacuum tube热离子真空管… |