比例外汇汇率的英文

• arbitrated exchange rate
• arbitration rate of exchange

• 比例:    scale; scaling
• 外汇汇率:    foreign exchange rate
• 外汇汇率:    foreign exchange rate; rate of exchange
• 调整外汇汇率:    exchange rate adjustment; readjustment of foreign exchange rate
• 即期外汇汇率:    spot exchange rate; spot rate of exchange