英语词汇hard valve怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

　

单词	hard valve
释义	Definition of hard valve in English: hard valve noun Electronics historical A thermionic valve or tube with a hard vacuum, or evacuated sufficiently for any remaining gas not to affect its performance. Origin Early 20th century; earliest use found in Wireless World. Definition of hard valve in US English: hard valve noun Electronics historical A thermionic valve or tube with a hard vacuum, or evacuated sufficiently for any remaining gas not to affect its performance. Origin Early 20th century; earliest use found in Wireless World.
随便看	exportation exportations exported exporter exporters exporting exportings export rejects exports exports exports export surplus expos exposal expose exposed exposed exposed exposed to exposed to the elements exposement expose oneself expose oneself expose oneself to exposer

　

英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间：2024/11/10 1:33:38