English ⇄ Chinese Danish Dutch French Lithuanian Russian Spanish

air return
dril.	回气流
oil	回气
wind.	回风
air-return
gen.	回风的

air return: 76 phrases in 12 subjects

Architecture	4
Computer numerical control	1
Electronics	2
Engineering geology	2
Food industry	2
General	1
Hydroelectric power stations	3
Oil processing plants	2
Rail transport	3
Refrigeration	11
Technology	44
Tennis	1