1) an excess of exports (over imports)
出超额[量]
2) exceed the quota
超出定额
3) exceed the number fixed
超出数额
4) An excessive amount.
过量，超额
5) excess flood
超额洪量
6) extra-flood
超额水量
1.
The extra-flood in past years in the Dongting Lake area are analyzed mainly by hydrological method,hydrodynamics method and flood regulation model combined hydrological method and hydrodynamics method.
采用水文学与水力学方法以及两种方法相结合的洪水调度模型分析洞庭湖区历年大洪水的超额水量,根据"洞庭湖区非常洪水调度方案"及调度模型控制蓄洪垸的启用,从而求出各蓄洪垸的运用几率。
补充资料：出超
贸易顺差(出超，Favourable balance of trade )：出口总额%26gt;进口总额， 以正数表示。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条