lowest discharge 中文意思是什麼
lowest discharge
解釋
最小流差-
Taking the reach with fluctuating backwater area in jiaokou hydroplant in xiujiang river, guanxi zhuang autonomous region for instance, this paper analyzes the water - sediment characteristics of the fluctuating backwater area, calculates the design level of this reach with samples of level and discharge, etc., and propounds the determination method for the designed lowest navigable level of reach with fluctuating backwater area
以廣西繡江交口電站的變動回水區河段為例，分析了變動回水區的水沙特性，分別利用水位、流量樣本及不同方法計算與分析本河段的設計水位，提出了變動回水區河段設計最低通航水位的確定方法。 -
The velocity of flood propagation was great and flood deformation was slightly when flood peak increase to bank full discharge. as the discharge increased to 2 - 2. 5 times of bank full discharge the velocity reduced to the lowest value and the greatest flood deformation occurred
當洪峰流量接近平灘流量時洪水傳播速度最快，洪峰變形最小，當洪峰流量約是平灘流量的2 2 . 5倍時，洪水傳播速度最慢，洪水變形最大。 -
Optimal periodic control with the lowest operational cost by limiting total substrate discharge mass was studied. through adding new state variable and using supplement functions, the problem with restriction conditions was converted into nonrestriction problem. in addition, the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method, consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better. it was found that the operational costs of optimal control under various initial states are distinctly different. a new concept of optimal control under optimal initial state was presented. it is pointed out emphatically that to the treatment system without optimal control condition, the suboptimal control with extensive practical value can be realized according to the results of optima control
著重研究了在限制有機物排放總量時，使其運行費用最低的最優周期控制問題.通過增加新的狀態變量和用補償函數法，將本課題的有約束條件問題化為無約束條件問題，並提出了最優步長參數的動態搜索法來修改傳統的梯度法，從而較完善地解決了多變量最優周期控制的計算問題.研究中還發現了不同初始條件下最優控制所需要的運行費用也大不相同，進而提出了最優初始狀態下最優周期控制的新概念，這對保證出水質量的同時進一步降低污水處理成本來說具有更重要的意義.本文還強調指出：對于尚不具備實現最優控制條件的處理系統，可根據最優控制的研究結果實現具有廣泛實用價值的準最優控制 -
2. based on the analysis of the historical evolution of jinan springs ' spurting, a quantity equation between the anaual average spring discharge and the anaual lowest water table is built according to the statistic data, which enable us to gain the corresponding relation between baseline water level and the smallest scenic discharge of spring gushing. then the groundwater discharge in the spring area is calculated and the controlling parameter of maximum available amount of groundwater exploiting is obtained
泉域總面積1486平方公里。 （二）通過分析濟南市泉群噴涌歷史統計資料，首先建立泉群年平均噴涌量與年最低地下水位之間的定量方程，得出四大泉群噴涌的底限水位與最低景觀流量的對應關系，然後，計算泉域內地下水的入滲補給量，再得出保證泉涌的地下水最大允許開采量的控制性參數。
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