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main scale | |||
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main scale |
主 尺: 52 phrases in 13 subjects |
Automobiles | 1 |
Aviation | 18 |
Compressors | 1 |
Electronics | 1 |
General | 1 |
Metallurgy | 1 |
Nautical | 3 |
Oil / petroleum | 2 |
Shipbuilding | 3 |
Space | 2 |
Technology | 15 |
Watchmaking | 1 |
Wind Energy | 3 |