thermionic tube

同根派生

英汉例句

• A high-resistance wire or ribbon forming the cathode in some thermionic tubes.
  丝极在一些电子管中形成阴极的高电阻的金属丝或金属带
• a thermionic tube having five electrodes.
  有五个电极的热离子管。
• a thermionic tube having four electrodes.
  有四个电极的热离子管。
• a thermionic tube having three electrodes.
  有三个电极的热离子管。
• A high - resistance wire or ribbon forming the cathode in some thermionic tubes.
  丝极在一些电子管中形成阴极的高电阻的金属丝或金属带