计算结果表明，微粒群算法具有概念简单、容易实现、计算速度快等优点，适合应用于面板堆石坝坝料参数反演分析。
The results indicate the validity of improved PSO methods in the back analysis of the mechanical parameters of concrete face rock-fill dam.
并阐述单悬臂旋转堆料机的主要性能参数相互关系及选取原则。
The mutuality of main function parameters and the selective principles of single arm slewing stacker were also described in it.
通过批量和堆肥反应器的试验研究，初步得出了堆肥过程的优化控制参数：通过周期性的补水，使堆料的含水率保持在50-60%之间；
Studies of batch test and composting reactor presented optimized conditions as follows:keeping 50%-60% of moisture content by periodic replenishment of water.
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