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| 危急保安器 | |||
| 限速器; 自动切断保险器 | |||
| 自动断路器 | |||
| 自动安全装置 | |||
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| 安全装置 | |||
| автомат безопасности: 10 phrases in 3 subjects |
| Electronics | 4 |
| General | 4 |
| Technology | 2 |
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