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service |
使用 线 : 46 phrases in 14 subjects |
Agriculture | 2 |
Automobiles | 7 |
Aviation | 7 |
Business | 1 |
Commerce | 2 |
Cryptography | 1 |
Dentistry | 1 |
Electronics | 3 |
General | 6 |
Oil and gas | 1 |
Rail transport | 1 |
Shipbuilding | 2 |
Technology | 8 |
Telecommunications | 4 |