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[海洋] 环礁
atoll
常考释义
An atoll is a reef in the form of a ring or horseshoe with a lagoon in the center.
环礁是一个环形或马蹄形礁，泻湖在礁的中间。
来源于：阅读OFFICIAL47 P3n. [海洋] 环礁，[地理] 环状珊瑚岛
This is the Bikini Atoll.
这就是比基尼环礁。
An atoll is a reef in the form of a ring or horseshoe with a lagoon in the center.
环礁是一个环形或马蹄形礁，泻湖在礁的中间。
来源于：阅读OFFICIAL47 P3Darwin s theory was that the succession from one coral reef type to another could be achieved by the upward growth of coral from a sinking platform, and that there would be a progression from a fringing reef, through the barrier reef stage until, with the disappearance through subsidence (sinking) of the central island, only a reef-enclosed lagoon or atoll would survive.
达尔文的理论是：一种珊瑚礁类型可以演替为另一种类型，首先珊瑚会从一个正在下沉的平面上向上生长，岸礁就演变到堡礁阶段，堡礁阶段由于中央岛全部沉入海里，只剩下珊瑚环绕的泻湖或环礁留存下来。
来源于：阅读OFFICIAL47 P3以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
