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| 51. | psychological activity |
| 心理活动 |
|
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| 52. | activity ratios |
| 经营比率 |
|
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| 53. | suBjective activity |
| 主观能动性 |
|
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| 54. | nominal activity |
| 额定放射性 |
|
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| | |
| 55. | extravehicular activity |
| 太空船外的活动 |
|
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| 56. | protonic activity |
| 质子放射性 |
|
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| | |
| 57. | jammer activity |
| 干扰机的工作 |
|
|
| | |
| 58. | postmagmatic activity |
| 后岩浆活动 |
|
|
| | |
| 59. | microbic activity |
| 物生物活性 |
|
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| | |
| 60. | insecticidal activity |
| 杀虫活性 |
|
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