排水沟和植被. 主要排水沟，具有挺水和边缘植被

排水沟维护机器正在工作

中央自然保护区排水沟

排水沟维护机器正在工作

排水管道

high angle view of a galvanized steel grid drainage channel with a square mesh pattern installed in an asphalt pavement surface

moss covered drainage channel filled with autumn leaves concrete roadside fallen oak running alongside a park path into bare

moss covered drainage channel filled with autumn leaves concrete roadside fallen oak running alongside a park path into bare

混凝土道路排水沟，带有钢格栅盖，旨在创造平坦的表面并防止事故发生

城市排水沟

concrete drainage channel surrounded by green grass and soil the channel s cover and entrance are visible with a circular lid

a snow dusted concrete drainage channel in culiac?n sinaloa mexico with steep tiled walls leading towards point the distance

路边排水沟，带有钢格栅盖和从屋顶连接的大型 PVC 管，用于有效排放雨水

路边排水沟，带有钢格栅盖和从屋顶连接的大型 PVC 管，用于有效排放雨水

stone drainage channel on hillside tea plantation steep stone drainage channel cut into hillside tea plantation soft focus side

沿着耕地运行的排水沟

排水沟警示牌

坎波托的排水渠，波河下游平原

混凝土排水沟，位于草地和土壤景观中

亚利桑那州院子里水泥开裂的混凝土排水沟

concrete drainage channel with stone walls in rural setting

混凝土排水沟穿过紧凑的花园

narrow reflective drainage channel between grassy banks with calm mirror surface linear perspective leading to distant

盖特威大桥，排水渠和傍晚

巴尔舒格岛的排水沟，桥梁

现代钢制人行天桥，带有几何栏杆，横跨长满草的排水沟，周围环绕着野生植物和郊区房屋

巴尔舒格岛的排水沟渠，桥梁和

巴尔舒格岛的排水沟，日落天空

亚利桑那州庭院中装饰有灌木和岩石的混凝土排水沟

metal grate over drainage channel in pavement close up urban stormwater management illustrates

混凝土排水沟部分被树叶和杂物堵塞

drone view shows a mined slope with drainage channel access roads and dry ravine terrain aerial view of mining slope with drainage

ancient roman seaside drainage channel in the archaeological park of herculaneum ercolano italy located is a narrow stone lined

这条被大型植物覆盖的排水沟

concrete drainage channel with metal grate in paved yard shows effective urban stormwater

一张排水沟的照片，上面覆盖着苔藓。 看起来很绿，也很清新

排水沟上的铁栅格，位于风景中

close up of vibrant green moss growing along a moist concrete drainage channel

concrete urban drainage channel with reddish water highlighting pollution issue in one section system

屋顶的雨水排水沟

施工现场展示了在居民区内建设中的排水沟，时间为白天