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| 螺纹件低圆柱头 | |||
| 高平头; 平头; 凸圆头; 丝饼头 | |||
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cheese head : 24 phrases in 9 subjects |
| Animal husbandry | 5 |
| Architecture | 1 |
| Automobiles | 6 |
| Aviation | 2 |
| Drilling | 1 |
| Metallurgy | 1 |
| Technology | 5 |
| Telecommunications | 1 |
| Wind Energy | 2 |
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