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| 螺纹衬套; 螺纹镶套 | |||
| 攻螺纹插入 (指用钢制的螺钉拧入铝或其他软材料的无螺纹的孔内) | |||
| 螺纹嵌件 | |||
| thread insert: 5 phrases in 2 subjects |
| Automobiles | 2 |
| Plastics | 3 |
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