集水面积 meaning in English
catchment area
catchmentarea
contributing area
water-collecting area
watershed area
Examples
- With the same slope gradient and slope length , the soil erosion on the dyke slope caused by the runoff mainly depended on the factors such as the runoff , flow velocity , rainfall intensity , rainfall duration , as well as the up - slope drainage area of dyke slope
坡度、坡长一定时，径流对戗坡的侵蚀主要与径流量、流速、雨强、降雨历时，戗坡以上汇聚水量或集水面积有关。 - The system considers synthetically the influence of estuarine ecosystem on the whole basin and human life from aspects of influence on pacts of the environment , biology and human of ecosystem respectively , and adopts the indices of catchment area , population density , inflow amount , period of river flow cut - off , water quality , biodiversity index number and biomass to evaluate the state of estuarine ecosystem
指标体系综合考虑河口生态系统对全流域及入类生活的影响，分别从生态系统的环境部分、生物部分以及对人类的影响等3方面，采用集水面积、人口密度、入海量、河口断流时间、水质、生物多样性指数和生物量等7项指标对河口生态系统状况进行评价。 - When catchment area , average channel gradient and catchment shape factor of designed culvert or bridge are known , a user can be convenient to get local parameters c , e and b from standard contour charts and easy to calculate flood flow just by a calculator . design period of flood flow is enormously shortened as well as a high precision . estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods , so that much cost is cut down a s reducing the span of culvert or small bridge
以75000km ~ 2的川中丘陵地区为试点研究区，绘制了该地区新模型的参数等值线图，率定了不同设计频率的改正系数，使设计者只需在地形图上获取集水面积，河道平均坡降和流域形状系数，在参数等值线图上查得桥涵所在地的相应参数，使用计算器即可迅速计算出设计流量，大大缩短了设计周期，且精度较高，设计的洪水流量一般低于传统方法，从而可减小桥涵跨径，节省投资。 - There are four characteristics of the evolution of tidal creek as follows : ( 1 ) in the initial stages , tidal creek develops by continuous eroding trace to the source and depriving of the top of other tidal creeks . ( 2 ) the transverse moving of tidal creek occur mostly in the lower part , the middle part and the outlet take second place , and the upper part is more stability . ( 3 ) the different level branches of tidal creek transform into each other in the whole evolution course
潮沟的演变具有以下特点： ( 1 )潮沟在形成初期，不断进行溯源侵蚀和袭夺以扩大集水面积而发展壮大， ( 2 )潮沟的侧向移动主要发生在潮沟的下段，中段和口门次之，上段最为稳定( 3 )不同级别的支潮沟之间处在不断地相互转化过程之中。