释义 |
up·well·ing \ˌəpˈweliŋ\ noun (-s) Etymology: from gerund of upwell : the process or an instance of rising or appearing to rise to the surface and flowing outward ; especially : the process of upward movement of marine cold deep usually nutrient-rich water to the surface near a continental shelf due to offshore drift of surface water (as from the action of winds or the Coriolis force) |