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whirling arm | |||
rotating lever | |||
swivel rod |
旋转杆 : 45 phrases in 12 subjects |
Architecture | 1 |
Automobiles | 1 |
Aviation | 2 |
Construction | 1 |
Drilling | 1 |
Mechanics | 1 |
Metallurgy | 6 |
Oil / petroleum | 2 |
Plastics | 6 |
Shipbuilding | 2 |
Technology | 21 |
Weightlifting | 1 |