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positive electric charge; positive charge | |||
positive charge | |||
positive charges | |||
positive electrical charge |
正 电 荷 : 29 phrases in 7 subjects |
Chemistry | 1 |
Electronics | 6 |
General | 8 |
Oil / petroleum | 2 |
Shipbuilding | 1 |
Technology | 8 |
Water resources | 3 |