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行频每秒扫描行数 | |||
工业频率 | |||
行扫描频率 | |||
行频; 行频率; 线路频率; 工频 | |||
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工频; 工业频率 | |||
线路行扫描频率 |
line -frequency : 58 phrases in 13 subjects |
Air defense | 2 |
Communications | 3 |
Compressors | 1 |
Construction | 1 |
Electric machinery | 1 |
Electronics | 13 |
General | 6 |
Geophysics | 2 |
Metallurgy | 4 |
Physics | 2 |
Steel production | 1 |
Technology | 14 |
Telecommunications | 8 |