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
Robbie, this new Walkman is absolutely wonderful. Robbie
Robbie 这个新的随身听真棒。
Deeds are fruits; words are but leaves.
行动是果实，言语只是树叶而已。
the king himself set out to penetrate the camp of Guthrum, the commander of the Danish invaders.
他亲自潜入丹麦入侵司令官古瑟罗姆的营地。