the heat transfer performance 基本例句 传热性能 Metal conducts heat better than wood.金属传热性能比木头好。 The heat transfer performance of looped PHP is better than un-looped PHP since it is easer to form circulation flow in looped PHP.环路型脉动热管传热性能在相同条件下要比非闭合回路脉动热管传热性能好。