higher zones meaning in English

更高的区域

Only the heat gain from the heat source and the heat coming from lower part of the wall is taken into account , the heat gain of higher zone of the room isn " t calculated
对置换通风其得热量计算时只考虑工作区热源散热量及从下部墙体进入的热量，可不考虑房间上部区域的得热量。
As the return of flow is being , one side the heat gain of higher zone will be lead back , on the other hand , the heat has been transmitted to upside also will return , so the heat gain will incr ease . the methods of using numerical simulating has been used to analyze the factors influecing convecting transfer heat in this paper
实际运行时由于空气的回返，一方面会把上部的得热带回工作区，另一方面也会把下部已传送上去的热量又带回，从而增加了下部的得热量，本文就影响对流热转移量的因素利用数值模拟的方法做了一初步的研究。