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| 51. | exhaust suction stroke |
| 排气吸气冲程 |
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| 52. | suction cleaning |
| 吸气式清选 |
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| 53. | end-point gettering rate |
| 终端吸气速率 |
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| 54. | gravity-aspirator bit |
| 重力吸气钻头 |
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| 55. | portable aspirating equipment |
| 便携式吸气装备 |
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| 56. | explosive Breathing |
| 爆发式吸气 |
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| 57. | getter for low temperature |
| 低温吸气剂 |
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| 58. | downcast ventilator |
| 吸气通风筒 |
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| 59. | getter sputtering |
| 吸气喷|镀 |
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| 60. | getter evaporation |
| 吸气剂蒸发 |
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