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| advancing edge; end-edge; front edge | |||
| leading edge | |||
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前 边缘 : 12 phrases in 9 subjects |
| Architecture | 1 |
| Automobiles | 2 |
| Bridge construction | 1 |
| Geology | 1 |
| Mechanics | 1 |
| Nursing | 1 |
| Plastics | 1 |
| Securities | 1 |
| Technology | 3 |
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