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空心铁芯 | |||
空心型芯 | |||
中空形芯 | |||
空心 |
hollow core: 34 phrases in 11 subjects |
Agriculture | 1 |
Architecture | 1 |
Automobiles | 1 |
Electric machinery | 1 |
Electronics | 6 |
Hydroelectric power stations | 1 |
Oil / petroleum | 1 |
Rail transport | 1 |
Space | 1 |
Technology | 19 |
Textile industry | 1 |