求翻译：在固定汇率制度下 , 汇率具有相对稳定性 , 汇率的波动范围或自发地维持、 或人为地维持，这使进出口商品的价格确定、国际贸易成本计算和控制、国际债权债务的清偿都能比较稳定地进行 , 减少了汇率波动带来的风险。此外 , 汇率比较稳定， 也在一定程度上抑制了外汇投机活动。因此固定汇率制度对世界经济发展起到一定促进作用。是什么意思？

Under the fixed exchange rate system, the exchange rate with the relative stability of the exchange rate fluctuations to maintain or spontaneous or artificially maintained, which makes the price of import and export commodities to determine costing and control of international trade, international d

Under a fixed exchange rate regime, the exchange rate has a relative stability, the fluctuations in the exchange rate range or spontaneously, maintenance, or artificially maintained for the import and export commodities, the prices, international trade, and costing and control international credit a

Under the fixed exchange rate system, exchange rates with relative stability, exchange rate fluctuation range or maintenance, or artificially maintained spontaneously, which makes import and export commodity prices, cost calculation and control of in