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| remote cut-off valve; variable-mutual conductance valve | |||
| extended-cutoff tube; remote-cutoff tube; variable-mu tube; varimu; variable-μ tube | |||
| лампа переменной крутизны: 14 phrases in 5 subjects |
| Electrical engineering | 2 |
| Electronics | 3 |
| Makarov | 2 |
| Mass media | 2 |
| Technology | 5 |