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math. element o przeciwnym znaku; element przeciwny
反: 196 phrases in 18 subjects
Accumulators7
Automatic control11
Electricity generation1
Electrochemistry4
Electronics22
Environment14
General41
Mathematics25
Microsoft2
Nuclear physics27
Physics1
Piezoelectric crystals5
Power system protection4
Reliability2
Semiconductors13
Statistics10
Superconductivity2
Thermal Energy5