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| 浮子式阻汽器; 浮子式疏水器; 浮子式凝汽阀; 浮筒式凝汽阀; 浮筒式隔汽具 | |||
| bucket trap: 13 phrases in 5 subjects |
| Metallurgy | 2 |
| Oil / petroleum | 3 |
| Refrigeration | 3 |
| Technology | 4 |
| Textile industry | 1 |
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