疲软的货币 meaning in Chinese

weak currencies

But for oil producers and countries that tie the value of their own money to the dollar , weakness reduces their purchasing power
但是对于石油生产者和本国货币与美元挂钩的国家而言，疲软的货币会降低他们的购买力。
But nine of the 13 models signal undervaluation , with the median value suggesting the yen is 15 % too cheap ? the weakest currency in the chart
不过13个模型中有9个表明日元低估，其中间价值显示日元低估15 % ? ?图表中最疲软的货币。