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recirculating air
 recirculating air
plast. 循环空气
refrig. 循环风
| duct
 duct
hydroel.st. 通道
met. 管系; 管线; 通路输送管
space 输送
sport. med. 管道

to phrases
recirculating air
plast. 循环空气
refrig. 循环风
tech. 再循环空气
recirculating air
: 9 phrases in 3 subjects
Plastics2
Refrigeration5
Technology2