干空气的物理性质温度t/C\x09密度p/kg·m-3比定压热容cp/kJ·kg-1·K-1\x09导热系数/10-2W·m-1·K-1\x09 粘度μ/10-5Pa·s\x09普兰德数Pr-501.584-401.515-301.453-201.395-101.34201.293101.247201.205301.165401.1281.0131.0131.0131.0091.0091.0091.0091.0131.01 质量的物质,在温度升高时,所吸收的热量与该...