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| 索环; 绝缘孔圈 | |||
| 索眼环; 金属孔眼; 金属封油环; 绝缘垫圈; 橡胶密封圈 | |||
| 堵头; 垫环; 麻丝垫环 | |||
| 垫圈; 衬垫 | |||
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grummet : 4 phrases in 3 subjects |
| Architecture | 2 |
| Technology | 1 |
| Textile industry | 1 |
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