| 单词 | vacuum tube |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔first-generation〕Computer Science Of, relating to, or being the period of computer technology distinguished by the use of vacuum tubes.【计算机科学】 第一代的：指使用真空管的计算机时代的或与之有关的美国传统〔stem〕The tubular glass structure mounting the filament or electrodes in an incandescent bulb or vacuum tube.晶体管管座：将灯丝或电极装入白炽灯泡或真空管的管状玻璃结构美国传统〔tube〕A vacuum tube.真空管美国传统〔valve〕Chiefly British An electron tube or a vacuum tube.【多用于英国】 电子管或真空管美国传统〔x-ray tube〕A vacuum tube containing electrodes that accelerate electrons and direct them to a metal anode, where their impacts produce x-rays.X射线管：一种含电极的真空管，它能使电子束加速并将其指向金属阳极而产生X射线美国传统 |
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