冷空气渗透耗热量计算
infiltration heat loss calculation
改进折算渗透系数法
improved converting permeability coefficient method
换算渗透系数
reduced coefficient of permeability
统计渗透率模型
statistical permeability model
参数设计计算
paramenter design and calculation
电磁阀设计计算
Design of an Electromagnetic Valve
电磁设计计算
Electromagnetic design calculation
二次换算计算
Second conversion calculation