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back current principle | |||
counterflow principle | |||
countercurrent technique |
принцип противотока: 7 phrases in 7 subjects |
Chemistry | 1 |
Electrochemistry | 1 |
Forestry | 1 |
Natural resourses and wildlife conservation | 1 |
Public utilities | 1 |
Refrigeration | 1 |
Textile industry | 1 |