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expanding stopple | |||
expanding plug; expansion plug; expansion stopple | |||
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expansion plug | |||
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belly plug |
膨胀塞 : 24 phrases in 8 subjects |
Automobiles | 6 |
Chemistry | 1 |
Drilling | 4 |
Engineering geology | 1 |
Mining | 1 |
Oil / petroleum | 2 |
Refrigeration | 1 |
Technology | 8 |