谷底: valley bottom; valley floor平地: level the land; rake the lan ...河漫滩 谷底平地 谷底水平原 谷地小平原: valleyflat谷底平原: valley floor plain; valley-floor plain海沟底平地: trench abyssal plain谷底平原阶地: valley-plain terrace底平: flat on bottom谷底: valley bottom; valley floor◇谷底滩地 strath; 谷底肿胀 bulging in valley (冻土区)平地: 1.(把土地整平) level the land; rake the land; rake the ground; rake the soil smooth2.(平坦的土地) level ground; flat ground; flatland; flat; lawn◇平地机 [农业] land leveller; grader; [交通运输] road grader底平面: floor plane; head古谷底: former valley bottom; strath谷底线: thalweg; valley line双谷底: double bottom型谷底: w-type bottom爱的谷底: underneath凹底平车: wellhole car衬底平行度: substrate parallelism船底平面: flat of bottom泛滥平原；谷底: valley plain谷底沉积: valley flat sediment谷底堆积: valley-floor increment谷底分水界: valley-floor divide谷底基盘: valley floor basement谷底基岩面: valley-floor basement谷底阶地: bed terrace
