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| 上闩; 上位锁闩 | |||
| up-latch: 15 phrases in 7 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Piezoelectric crystals | 1 |
| Semiconductors | 1 |
| Space | 5 |
| Technology | 2 |
| Telecommunications | 4 |
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