复式断面渠道 meaning in Chinese

channel with compound section

2 . based on the achievement of predecessors physical modeling and fundamental theory of hydrodynamic behavior of compound channel with rigid vegetated floodplains are studied in this paper . hydrodynamic behavior of compound with rigid vegetated floodplains is conclued
在前人研究的基础上对河滩上种有树木的复式断面渠道的水流特性进行了试验研究，着重分析了滩地种树密度、排列方式对水流的影响。