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| 71. | controlling beam |
| 操纵波束 |
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| 72. | beam diagnostics |
| 束流诊断 |
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| 73. | beam efficiency |
| 波束效率 |
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| 74. | Beam filling |
| 梁间墙 |
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| 75. | beam straightener |
| 钢梁矫直机 |
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| 76. | electromagnetic beam |
| 电磁波束 |
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| 77. | beam translator |
| 光束平移器 |
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| 78. | Hollow beam |
| 空心梁 |
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| 79. | fender beam |
| (船舷上的)护舷物, (铁路终点的)止车障 |
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| 80. | Beam grillage |
| 梁格 |
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