Pre-tr tube
[电] 预-TR管
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
[计] 磁带记录器, 磁道, 磁带驻留, 故障报告
🗣️ 情景例句
I've heard a great deal about you.
久仰大名。
Cheerful company shortens the miles.
旅有好旅伴，不觉行程远。
Mr Hu stood at the starting line. All the runners got ready to run.
胡先生站在起跑线上。所有的运动员都做好了起跑准备。