多线船闸 meaning in English

multiple lock

The pattern of flow of lower lock approach is usually complicated due to the influences of the interaction of flow underpoured from different locks . generally , physical model is applied to study the current field for the case of irregular boundaries and complex flow pattern
由于受多线船闸下泄水流相互作用的影响，船闸下游引航道非恒定流流态十分复杂，对于此类有复杂流态的非恒定水流运动问题一般采用物理模型进行研究。