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开发和研究
auto.
development and research
开 发和研究
:
76 phrases
in 17 subjects
Automobiles
2
Aviation
8
Earth sciences
34
Ecology
1
Economy
2
Electronics
5
Geology
2
Mechanics
1
Name of organization
4
Navigation
1
Oil / petroleum
1
Plastics
1
Securities
1
Shipbuilding
1
Space
5
Technology
6
United States
1
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