n.彎曲；曲折；彎曲處

Channel is the main sediment conduit and deposition area.From updip to downdip area, the sinuosity of channel increases and the flow energy decreases. 深水河道是物源的主要通道和沉積的重要場所，從上游至下游河道彎曲度增加，能量逐漸減弱。

The sinuosity or sinuosity ratio of a stream is expressed as the ratio of the length along the center line of the stream to the length along the valley. 一條河流的彎曲率或彎曲比，是以沿該河中心線與沿其河谷長度之比來表示的。