语言选择:
免费网上英汉字典|3Dict

thermionic valve

资料来源 : WordNet®

thermionic valve
     n : electronic device consisting of a system of electrodes
         arranged in an evacuated glass or metal envelope [syn: {tube},
          {vacuum tube}, {thermionic vacuum tube}, {thermionic
         tube}, {electron tube}]
依字母排序 : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z