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efficiency system
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tech.
效率制
efficiency system
:
44 phrases
in 23 subjects
Agriculture
2
Aviation
3
Business
2
China
1
Computers
1
Earth sciences
1
Electric machinery
1
Electricity
1
Electronics
2
General
1
Hydrology
2
Information technology
1
Management
2
Mechanics
1
Nautical
2
Project management
3
Refrigeration
1
Shipbuilding
2
Solar power
2
Space
3
Technology
8
Water resources
1
Wind Energy
1
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