Then in 2002 a European Union regulation forced them to charge no more for cross-border transfers within the euro area of up to euro12,500 than they did for domestic ones.
Theory and practice indicate tiny stream flow, charge, large electric current charge, cross, charge and float way of charging combined to charge, can reach the best result.
理论和实践表明，涓流充电、大电流充电、过充电和浮充电组合起来的充电方式，可达到最佳的效果。
3
If charge cannot cross the interface, it is said to be polarized and is electrically equivalent to a capacitor.