Phanotron
[电] 热阴极含气整流管
🗣️ 情景例句
Please try to keep relaxed, sir.
别太紧张，先生。
Trust thyself only, and another shall not betray thee.
只要信任你自己，别人不会辜负你。
This is a telephone with a tape recorder.
这是一台带有磁带录音机的电话。