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| main control room | |||
| master control room | |||
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主控室 : 10 phrases in 8 subjects |
| Advertising | 1 |
| Aviation | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Nuclear and fusion power | 3 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
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