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子轨道
oil
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子 轨道
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126 phrases
in 18 subjects
Agriculture
3
Aviation
6
Biotechnology
3
Cartography
1
Chemistry
20
Earth sciences
19
Electronics
19
General
6
Health care
1
Metallurgy
6
Molecular genetics
4
Oil / petroleum
1
Physics
2
Semiconductors
2
Shipbuilding
2
Space
11
Technology
19
Water resources
1
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