The optimization operation is calculated taking Lishui river basinparallel connection system as the example compares it and the conventional operation scheme results.
以澧水流域并联系统为例进行了优化调度计算，并以常规调度方案成果进行了分析比较论证。
2
The main material source comes from the north, and there are 4-5 former material sources nearly parallel to each other in the northern part of the basin.
北部物源供给明显，占主导地位。盆地北部4 - 5个古物源呈几乎平行的状态由北向南分布。
3
Sichuan Basin may be divided into east Sichuan parallel ridge-and-valley area, low mountain-hill area around the basin, central Sichuan hill area and west Sichuan plain area.