overall coefficient meaning in English

全系数
总系数

Investigation of testing for overall coefficient of heat - transfer concerning forced circulation air coolers during frost condition
结霜工况冷风机传热系数实验研究
On the basis of these results , the optimal operating temperature of the solar collector and the maximum overall coefficient of performance ( cop ) of the cooling modes of the system are derived
又在此基础上，结合太阳能集热器作为系统的热源，对整个系统的最优综合性能进行分析，得出了最优集热器的运行温度以及在该温度下的系统最优综合效率性能系数。