existing waterway造句

Based on the experience of existing waterway regulation , using a great deal of field data , analytic data and existing research findings , the ragulate lead on the area from zhuqi to kegong in minjiang river are studied by using physical models and schemes are recommended in this thesis
本文将在已有的航道整治经验的基础上，结合闽江大量现场实测资料、分析资料及过去的研究成果，运用物理模型对闽江竹岐至文山里、科贡河段进行治导线研究，找出推荐方案。
It's difficult to find existing waterway in a sentence. 用existing waterway造句挺难的