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| cross field amplifier | |||
| crossed-field amplifier | |||
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| crossed-field amplifier | |||
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正交场 放 大管 : 10 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 1 |
| General | 1 |
| Radio | 3 |
| Space | 1 |
| Technology | 3 |
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