常物性流体在带直肋的环形通道内作充分发展层流对流换热，内表面为均匀壁温（周向），轴向则呈线性变化，外表面绝热。求：截面上速度分布、温度分布-Constant physical properties of fluid in the annular channel with a straight rib for fully developed laminar flow within the convective heat transfer, uniform wall temperature of t

基于ARM7嵌入式系统的启动程序的实现流程,并针对存储器控制单元的使用以及目标文件的分布装载等技术难点进行详细分析。-ARM7-based embedded system startup program implementation flow, and memory control unit for use and distribution of loading the target file technical difficulties such as a detailed analysis.

辐射型配电网实时潮流计算.Radial distribution network real-time power flow calculation. PDF-Radial distribution network real-time power flow calculation.

立空调系统与车厢内部空间的整体模型,对整体流场进行数值模拟。全面深入的 研究列车高速运行、进出隧道和会车时,车内的气流组织情况和空气质量的好坏 是极为必要的。 -Location, air distribution mode, the selection of fan parameters and to the air conditioning system of the train, so must be built Set the air conditioning syste