up.well.ing

upwelling的音标和读音：
DJ音标发音： [, ]
KK音标发音： [, ]

upwelling的词性：
n.（名词）

1. The act or an instance of rising up from or as if from a lower source:
上涌：从低部向上涌的动作或实例：

an upwelling of emotion.
感情上涌

2. A process in which cold, often nutrient-rich waters from the ocean depths rise to the surface.
上升流：冷而营养丰富的海水由海洋底部上升到表面的过程