external region meaning in Chinese

外侧区

Electromagnetic energy - momentum tensor in external region of schwarzschild black hole in melvin ' s magnetic universe
黑洞外部区域的电磁场能量动量张量
The communication of culture education between yi meng and external regions during wei , jin , nan and bei periods
魏晋南北朝时期沂蒙文化教育与外地区的交流
Compared to heat transfer in the external region of borehole , mass and heat capacity of materials inside the borehole are insignificant and negligible . thus , heat transfer inside the borehole is approximated as steady - state heat transfer except for analyses of short times ( a few hours )
与钻孔周围区域传热过程相比，由于钻孔内材料的热容量较小，因此除了讨论短时间(数小时)的瞬变传热问题以外，可以忽略钻孔内材料的热容量，把该部分的传热近似作为稳态传热处理。
In the external region , heat transfer between the u - tube borehole and the ground is considered with a model of a finite line - source in a semi - infinite medium , and it is the first time to achieve an analytical solution of the temperature distribution for a such a transient two - dimensional conduction problem by means of the green - function method
对单个钻孔的传热划分为两个区域分别进行研究。在钻孔周围区域，将竖直u型管的传热简化为有限长线热源的传热问题，采用格林函数法首次得到了有限长线热源温度分布的解析解。