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再循环系统 zài xúnhuán xìtǒng
labor.org. recirculation system; closed system; recirculating system
met. recycling system
tech. recycle system
再循 环 系统
: 39 phrases in 12 subjects
Automobiles8
Aviation1
Earth sciences1
Ecology1
Electronics11
General2
Metallurgy1
Nautical1
Refrigeration1
Space1
Technology10
Water resources1