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| 气堵 | |||
| 气栓; 气塞 | |||
| 气锁 | |||
| 气囊 | |||
| 煤气闸; 煤气阀; 气闸; 气封 | |||
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gas lock breaker : 5 phrases in 4 subjects |
| Automobiles | 1 |
| Chemistry | 1 |
| Mechanics | 1 |
| Metallurgy | 2 |
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