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double spring; dual spring |
双弹簧 : 96 phrases in 12 subjects |
Architecture | 4 |
Automobiles | 19 |
Aviation | 1 |
Compressors | 1 |
Electric machinery | 1 |
General | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Rail transport | 1 |
Shipbuilding | 2 |
Technology | 63 |