finite-difference equation meaning in English

有限差分方程

A computer program is developed to solve the finite - difference equation
为以后更复杂的研究打下了基础。
The model assimilates the latest results in the research and is solved by numerical approach which is called finite - difference equation 。 combined with experimental system , this model simulates the temperature of the water which comes from ground heat exchangers and the round temperature field
结合实验系统和传热模型，我们对制冷运行中地下换热器的出水温度及周围温度场分布进行了模拟分析，并给出了钻孔的平均传热系数的公式。