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| 尖棱 | |||
| 锐边 | |||
| 罐头卷边上沿的快口; 边缘锋利度 | |||
| 利刃 | |||
| 清晰边沿; 陡沿; 飞边 | |||
| 锐利的刃口; 刃形; 清晰边缘 | |||
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sharp edge : 19 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Bridge construction | 1 |
| Chemistry | 2 |
| Desert science | 2 |
| Drilling | 1 |
| Electric machinery | 2 |
| Mechanics | 2 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Technology | 1 |