exceeded variation 中文意思是什麼
exceeded variation
解釋
回差大-
The value of surplus environmental capacity of din exceeded about 70 percent of the 1st grade environmental capacity in 1997. since 1997, the impact of nutrients pollution has begun to mitigate because of the enhancing protection of marine ecology by local government. the variation of surplus environmental capacities of din and po4 - p in jiaozhou bay implicated that the discharge amounts of din and po4 - p to jiaozhou bay were bearable from late 1970s to mid 1980s
但自80年代中期至90年代中後期，營養鹽剩餘環境容量迅速減小，至1997年din剩餘環境容量已超過國家一級海水水質標準下膠州灣din環境容量約70 ，而自90年代末開始膠州灣din剩餘環境容量又有所增加，而po _ 4 - p剩餘環境容量減小速度趨緩。
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