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| 带有断开电子管的; 断开〔截止〕管 | |||
| 闭锁管 | |||
| off-tube: 13 phrases in 6 subjects |
| Electronics | 2 |
| General | 1 |
| Metallurgy | 3 |
| Plastics | 1 |
| Technology | 5 |
| Textile industry | 1 |
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