The doping ions with various valences were selected to verify the charge compensation effect on the luminescence intensity as K and al seem to have similar charge compensation effect.
选择不同价态补偿离子掺杂是为了研究电荷补偿作用机制对该类材料发光性能的作用。
The U. K. will charge banks 0.50% plus the historical cost of default insurance on the bank's debt.
除银行债务违约保险的通常成本之外，英国还将收取0.5%的额外费用。
The U. K. will charge banks 0.50% plus the historical cost of default insurance on the bank's debt.
除银行债务违约保险的通常成本之外，英国还将收取0.5%的额外费用。
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