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| ballast tube (镇流电阻器) | |||
| regulator tube | |||
| barretter | |||
| anemostat | |||
| regulation tube | |||
| |||
| balitron | |||
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| anemostat | |||
| 稳流管: 2 phrases in 2 subjects |
| Mining | 1 |
| Technology | 1 |
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