In Changjiang estuary area, the surface density currents flow southeast mostly, and a cyclone type circulation appears in Hangzhou gulf.
长江河口表层密度流流出口门后主体方向基本为东南，杭州湾内部出现一个气旋式环流。
参考来源 - 冬季黄海东海环流和长江冲淡水扩展·2,447,543篇论文数据，部分数据来源于NoteExpress
Density currents generated by saline and fresh water interactions are also important in the transport of sediment in estuaries.
由盐水和淡水相互作用所产生的异重流，在河口泥沙输移中也是很重要的。
The density of the gases are low enough to allow convective currents to develop.
气体的密度低到足以形成对流。
The contour currents colliding with the overlapped low density normal seawater can create internal waves of large scale at the interface of the thermohaline.
在等深流与上覆低密度水体之间的界面上具备产生大规模界面内波的条件；
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