英语语法分析

Charcoal were the propriety material for water treatment in the riverway in Suzhou city.

木炭填料适宜应用于苏州城市河道水环境质量改善。

The establishment of riverway DEM is the basis of riverway analysis and riverbed change.

河道DEM的建立是河道整治、河床演变的基础。

Riverway treatment is a traditional and pragmatical engineering of an ancient and active field.

河道治理是传统实用的工程，是一个古老而活跃的领域。