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环圈 huánquān
anim.husb.	circumcinct
archit.	ferrule
compr.	annular ring; loop
met.	girdle
oil	toroidal ring
环〔套〕圈
gen.	ferrule
环圆圈
archit.	annular ring

环圈: 158 phrases in 34 subjects

Agriculture	4
Artificial intelligence	1
Automobiles	29
Aviation	2
Business	1
Chemistry	1
Cryptography	1
Desert science	6
Earth sciences	1
Ecology	2
Economy	1
Electric machinery	8
Electronics	7
Engineering geology	1
General	8
Gymnastics	1
Hydroelectric power stations	2
Latin	1
Metallurgy	4
Nursing	2
Oil / petroleum	9
Plastics	2
Polymers	1
Refrigeration	1
Rowing	1
Securities	1
Shipbuilding	1
Space	1
Steel production	1
Superconductivity	1
Technology	35
Telecommunications	1
Textile industry	18
Wind Energy	2