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| 71. | leak protection system |
| 渗漏防护系统 |
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| 72. | leak-testing apparatus |
| 密封性检验仪 |
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| 73. | emitter leak current |
| 发射极漏电流 |
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| 74. | halogen leak locator |
| 卤素查漏仪 |
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| 75. | Remedy a leak |
| 修补泄漏 |
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| 76. | leak proof container |
| 防漏容器 |
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| 77. | deuterium leak detector |
| 重水检漏器 |
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| 78. | leak radiation dose |
| 泄漏剂量 |
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| 79. | leak measurement valve |
| 内漏测量活门 |
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| 80. | grid leak resistor |
| 栅漏电阻 |
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