| 1. | We observe three sunspot groups on the disc .
在日面上观测到三个黑子群。 |
| 2. | A performance now transcribed onto compact disc .
现已制成激光唱片的一次演出。 |
| 3. | The compact disc is a miracle of modern technology .
激光唱片是当代技术的奇葩。 |
| 4. | The beatles cut their first disc in 1962 .
披头士乐队于1962灌制了他们的第一张唱片。 |
| 5. | The disc has a heavy surface and the tone is faithless .
那唱片表面粗陋，音质失真。 |
| 6. | The lower portion of the disc is submerged within an oil sump .
圆盘下部浸在油池中。 |
| 7. | Compact disc recordings give excellent sound reproduction .
激光唱片播放的声音保真度很高。 |
| 8. | Moistened pasteboard or cloth was inserted between each disc .
每块金属板中间嵌进湿纸板或布料。 |
| 9. | From this master disc, plastic discs are stamped out cheaply .
从这个总盘很便宜地复制出塑料盘。 |
| 10. | The shaft and discs rotate at about forty revolutions per second .
竖轴和磁盘每秒钟大约旋转40转。 |
