| |||
return circuit system | |||
drainback system | |||
return flow system; reverse flow system | |||
return-flow system; regeneration system |
回流 系统 : 20 phrases in 7 subjects |
Aviation | 1 |
Ecology | 1 |
Electronics | 4 |
Metallurgy | 2 |
Mining | 1 |
Refrigeration | 3 |
Technology | 8 |