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seco- | |||
open-loop | |||
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split-ring |
开 环的 : 35 phrases in 13 subjects |
Automobiles | 6 |
China | 1 |
Construction | 1 |
Drilling | 2 |
Earth sciences | 1 |
Ecology | 2 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Finances | 6 |
Project management | 1 |
Securities | 1 |
Technology | 5 |
United Nations | 7 |