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光电/红外
avia.
electrooptical/infrared
space
electro-optical/infrared
光电/红外:
47 phrases
in 11 subjects
Air defense
2
Aviation
1
Chemistry
1
Earth sciences
2
Electronics
10
General
2
Metallurgy
2
Oil processing plants
1
Shipbuilding
5
Space
7
Technology
14
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