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| 51. | ultrasonic welding |
| 超声波焊接 |
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| 52. | flash butt welding machine |
| 闪光对接焊机 |
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| 53. | single welded butt |
| 单面焊对接 |
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| 54. | supersonic tempering |
| 超声波回火 |
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| 55. | butt welded joint |
| 对接焊节点 |
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| 56. | Supersonic diagnostic set |
| 超声波诊断仪 |
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| 57. | butting optical fiber |
| 对接式光纤 |
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| 58. | supersonic cleaner |
| 超声波清洗器 |
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| 59. | ultrasonography of breast |
| 乳房超声波图像术;乳房超声波照相术 |
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| 60. | an ultrasonic wave examination room |
| 超声波检查室 |
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