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1. | annihilator conditional ring |
| 零化子条件环 |
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2. | steam annihilator |
| 蒸汽灭火装置 |
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3. | left annihilator |
| 左零化子 |
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4. | a manual fire engine; a manual fire extinguisher |
| 手压式灭火器 |
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5. | annihilator algebra |
| 零化子代数 |
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6. | bubble annihilator |
| 磁泡消除器 |
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7. | annihilator relation |
| 零化子关系 |
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8. | annihilator of module |
| 模的零化子 |
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9. | right annihilator |
| 右零化子 |
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10. | all-purpose extinguisher |
| 通用灭火器 |
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