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41. | well focused beam |
| 良聚焦束 |
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42. | beam neutralization |
| 束流中和 |
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43. | beam production |
| 束流产生 |
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44. | beam forming electrode |
| 聚束极 |
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45. | beam-optics arrangement |
| 束流光学装置;束流输运系统 |
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46. | Broad-Beam condition |
| 宽射束 |
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47. | beam confining electrode |
| 集射屏;聚束极;聚束极 |
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48. | beam deflection system |
| 束偏转系统 |
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49. | Narrow beam condition |
| 窄射束 |
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50. | beam gating electrode |
| 束门控电极 |
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