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闭链
gen.
cycle
chem.
closed chain
tech.
close chain
闭 链
:
31 phrases
in 12 subjects
Automobiles
1
General
2
Hydraulics
1
Hydroelectric power stations
1
Mathematics
1
Mechanic engineering
1
Microelectronics
1
Molecular genetics
1
Oil / petroleum
3
Oil processing plants
1
Technology
13
Textile industry
5
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