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| 21. | flat bed straight lockstitch sewing machine |
| 锁式针迹平缝机 |
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| 22. | probably assumed that the sea-bed was flat. |
| 大概都会认为海底是平坦的。 |
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| -- 来源 -- 新概念英语第四册 - Exploring the sea-floor |
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| 23. | Bed: Flat part or table of a letterpress printing machine on which the forme is loked for printing. |
| 版台:活版印刷机上承载印版及将它锁稳印刷的平台部份。 |
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| 24. | automatic flat-bed screen printing machine |
| 自动平板筛网印花机 |
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| 25. | flat bed offset printing machine |
| 平台胶印机 |
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| 26. | flat bed screen printing machine |
| 台板平网印花机 |
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| 27. | electrically heated flat bed press |
| 电热平板压烫机（间歇式转移印花设备） |
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| 28. | medium speed flat bed sewing machine |
| 中速平缝机 |
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| 29. | flat-bed lock stitch machine |
| 平板锁缝缝纫机 |
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| 30. | flat-bed single needle sewing machine |
| 平板单针缝纫机 |
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