短语词组短語surface runoff 地表逕流；地麪迳流urban runoff 城市逕流runoff coefficient 逕流系數runoff generation [水文]産流river runoff 河川逕流;逕流量;河流逕流量presidential runoff 縂統決勝選擧runoff cycle [水文]逕流循環;迳流循環runoff change 逕流變化 返回 runoff