In addition, the decrease of the annuli gap will yield heat transfer deterioration during flowing in narrow annular channels. 此外,环缝间隙的减小将导致环形通道的换热性能下降。
The structure of the resin and its thermo capability were analyzed and characterized by IR and thermoanalysis. 用红外光谱和热分析手段对该改性树脂的结构和热性能进行了分析表征。