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measuring dial |
测量盘 : 36 phrases in 12 subjects |
Agriculture | 1 |
Architecture | 2 |
Automobiles | 1 |
Drilling | 1 |
Earth sciences | 2 |
Electronics | 4 |
Engineering geology | 2 |
General | 2 |
Hydroelectric power stations | 2 |
Oil / petroleum | 3 |
Shipbuilding | 1 |
Technology | 15 |