anoxic event

• 缺氧事件

anoxic event的用法和样例：

例句

1. The two oceanic anoxic events in that area were influenced by the input of the terrigenous deposit,and the anoxic degree was limited in a certam extent.
   该地这两次大洋缺氧事件，在一定程度上受到陆源物质输入的影响，缺氧强度上有所削弱。