The results show that the selected regression model is reliable, which can provide credible data for calculation of engine waste heat utilization. 结果表明，回归模型具有较高的可信度，可为天然气发动机的废热利用提供相关数据。
Most countries have a threshold level permissible in waste streams and hundreds of millions of pounds are spent annually treating aste water to get to acceptable levels. 大多数国家的阈值水平允许的废物流和数亿英镑用于处理垃圾每年水去可接受的水平。
美
