derated standard level

例句：

1. 1. The level of pollution has been significantly derated in recent years.
   近年来，污染水平已经显著降低。
2. 2. The economy is experiencing a slight derated in its growth rate.
   经济正在经历其增长率的轻微下降。
3. 3.The company's profits have been significantly derated due to the competition.
   由于竞争，该公司的利润已经显著降低。