rills
n. 小河,小溪( rill的名詞複數 ); (地表或岩石表面)沖蝕而成的水溝
The little rills of selfishness had united and made a channel.
一點兒細微的自私的涓涓之流,匯合成了一條大河.
All have rills lightcolumn and irregular netted rills.
全體有淺色縱行溝紋及不規則網狀溝紋.
Rills of muddy water rushed and swelled the stream and sunk my boat.
渾水像小河般流溢,把我的船衝沒了.
Zhang Keli and Zhang Zhumei: Erosion and Sediment Delivery in Rills for Steep Loess Slope.
孔亞萍,張科利: 黃土坡面侵蝕產沙沿程變化的模擬實驗研究.