压力损失是袋式收尘器重要的技术经济指标。
The Leading economic index rose for the fourth straight month, according to data released Thursday.根据周三公布的数据显示,主要的经济指标已经连续第四个月回升。
The drying mechanism and technology optimization of spray drying are generally studied by experiments. And spray drying lacks theory research, which affects its technical economic index.喷雾干燥技术的机理及工艺优化常常只能采用实验的方法来分析和探讨,缺乏理论研究,影响了喷雾干燥的技术经济指标。