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环状弹簧 | |||
环弹簧 | |||
环形弹簧 | |||
止动环; 弹簧环 |
ring spring : 54 phrases in 14 subjects |
Angling hobby | 1 |
Automobiles | 11 |
Compressors | 2 |
Construction | 1 |
Drilling | 2 |
Electric machinery | 2 |
Electronics | 1 |
Exhibitions | 1 |
Oil / petroleum | 3 |
Plastics | 1 |
Rail transport | 4 |
Space | 3 |
Technology | 21 |
Telecommunications | 1 |