“真空管”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	真空管
释义	物理学词汇手册真空管 vacuum tube；（vacuum）valve
随便看	direct digital controller--direct digital controller (DDC) direct digital control system direct digital control system (DDC system) direct digital control system--direct digital control system (DDC system) direct digital control system（DDC system） direct discourse direct distribution direct distribution direct distribution direct division direct division direct drive direct drive direct dumping direct dye direct dyeing directed activities directed acyclic graph directed acyclic graphic directed acyclic graphic (DAG) directed acyclic graphic--directed acyclic graphic (DAG) directed application directed-beam directed control directed economy