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| 61. | beta decay electron |
| 粒子 |
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| 62. | magnesium granule, graded according to size |
| 镁粒,按大小分级 |
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| 63. | automatic granule filling and packing machine |
| 自动颗粒包装机 |
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| 64. | A beta particle. |
| β粒子 |
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| 65. | interplanetary particle |
| 行星际粒子，宇宙粒子 |
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| 66. | particle astronomy |
| 粒子天文学;高能粒子天文学 |
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| 67. | unbound particle |
| 无束缚粒子，自由粒子 |
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| 68. | alpha particle a |
| —粒子 |
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| 69. | Percentage of Particles |
| 粒子比率；粒子数目百分比 |
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| 70. | introduced, the charging reason is described from the existing phenomena of electrostatic charge, when the granule |
| 介绍了粉体带电的影响因素,从粒子与外用机械材料和粒子接触、擦、分离时发生静电的现象,对带电原因进行了阐述。 |
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