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to phrases
环形圈
auto.
annular cup
环形圈
:
34 phrases
in 16 subjects
Automobiles
5
Aviation
1
Chemistry
1
Electric machinery
3
Electronics
4
General
1
Metallurgy
2
Nursing
1
Oil / petroleum
3
Plastics
1
Refrigeration
1
Shipbuilding
1
Space
1
Superconductivity
1
Technology
7
Telecommunications
1
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