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71. | protective lining |
| 保护衬里 |
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72. | protection requirement |
| 保护要求 |
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73. | protective adaptatio |
| 保护适应 |
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74. | protective resistance |
| 保护电阻 |
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75. | protective anode |
| 保护阳极 |
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76. | protective crop |
| 保护罪 |
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77. | protective choke coil |
| 保护扼流圈 |
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78. | protective masking |
| 保护挡板 |
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79. | protective circuit breaker |
| 保护断路器 |
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80. | protective resistor |
| 保护电阻器 |
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