grouping of equations meaning in Chinese

方程分群

In the studying of the dielectric recovery mechanism , the dielectric process of high - power repetitive gas switches was analyzed theoretically , the conditions of full recovery of dielectric capability , and some qualitative results were obtained . then , a dynamic mathematical model of the dielectric recovery process was made , and a group of equations , including mass conservation equation , momentum conservation equation , energy conservation equation and state equation , were built . also , a mathematical model of the dielectric recovery process of a axially - blown gas spark gap , and a group of simplified hydromechanical equations were made
在绝缘恢复机理研究中，首先对高功率重复气体火花开关绝缘恢复过程进行了理论分析，提出了开关绝缘强度完全恢复的判据，得到了一些定性结论；然后建立了一般吹气式气体火花开关绝缘恢复的动态数学模型，得到了包括质量守恒方程、动量守恒方程、能量守恒方程和状态方程等的一个完备方程组；建立了纵吹式气体开关绝缘恢复过程的数学模型，得到了一个简化流体力学方程组。