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钟形 | |||
带护锥复合中心钻 | |||
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钟罩式服装款式 |
bell type : 65 phrases in 13 subjects |
Architecture | 3 |
Automobiles | 1 |
Chemistry | 7 |
Construction | 1 |
Ecology | 1 |
Electricity | 1 |
Mechanics | 1 |
Metallurgy | 22 |
Oil / petroleum | 2 |
Refrigeration | 1 |
Steel production | 1 |
Technology | 20 |
Textile industry | 4 |