The paper applies combined analysis, especially the analytical methods of Constant Elasticity of Substitution Production Function and the analysis of Man-land coordinate relationship.
本文运用人地关系协调分析法与经济分析法，特别是与替代弹性不变生产函数分析法C。
2
When the land was used up or the river was dirty in one place, man moved to another place.
当一个地方的土地用完或河流变脏了，人们就搬到另一个地方。
3
The young man sat safe within, till at length it ran ashore upon an unknown land.