horizontal slope meaning in English

平坡

With the in - built drip irrigation belt and thin wall chip irrigation belt taken as examples , the flow rate distribution and hydraulic losses of drippers along capillary tubes at different inlet pressures were measured under the conditions of horizontal slope and slope gradients of 0 . 5 % and 1 % , then the uniformity of capillary tubes was calculated at different slope gradients and pressures in consideration of the manufacture deviation of drippers
摘要以内镶式滴灌带和薄壁滴灌带为研究对象，测定了平坡、 0 . 5 %坡度和1 %坡度时，不同入口压力下滴头沿毛管的流量分布和水力损失，并结合滴头的制造偏差，计算得出不同坡度和压力条件下滴灌毛管的均匀度。