According to the features of water cycle in protective forest ecosystem in loess area, the equation of water balance for the protective forestry ecosystem was put forward.
根据黄土地区防护林生态系统水分循环的特征，提出了防护林生态系统水量平衡方程。
A study on marsh wetland through their own hydrographic characteristics and water balance equation, the affecting factor on the changes of marsh wetland are analyzed in detail in the Sanjiang Plain.
通过对沼泽湿地所特有的水文特征和水量平衡方程的研究，详细地分析了三江沼泽湿地变化的影响因素。
How to calculate the water invasion rate correctly while we study the performance and calculate the dynamic reserves of the gas reservoir with material balance equation is still a difficulty for long.
在利用物质平衡方程计算水驱气藏地质储量、研究气藏动态时，水侵量的计算一直是个难点。
This article is based on the material balance equation and the no fixed water inroad equation, educe the equation of the no water recovery and the water coming time.
以物质平衡方式和不定态水侵公式等油藏工程理论为基础，得出无水期采收率和油藏见水时间的计算公式。
In soil-plant-atmosphere system, soil available water content, crop water consumption, and effective precipitation are the main factors in water balance equation of farmland.
在土壤-植物-大气系统中，土壤有效水分贮存量、作物耗水量和有效降水量是农田水分平衡的主要组成因子。
Water balance elements of urban hydrological cycle have been measured and investigated, then checked by means of water balance equation in urban areas.
通过精测与调查收集城市水资源要素，并用城市水平衡方法检验。
The explicit volume balance model was modified and combined with the motion equation of the zero inertia to predict water advance in border irrigation.
在对水量平衡模型进行修改的基础上，结合零惯量运动方程，以水量平衡方程为基础，对畦灌水流演进模型的结构进行了研究。
Analyzing the heat balance of the water-heating process of solar cookers, this paper presents the differential equation of the energy transfer during the transient working condition of solar cookers.
本文导出了太阳灶工作时的非稳态能量传输微分方程序，其解展示了太阳灶对不同辐射输入的动态响应。
Analyzing the heat balance of the water-heating process of solar cookers, this paper presents the differential equation of the energy transfer during the transient working condition of solar cookers.
本文导出了太阳灶工作时的非稳态能量传输微分方程序，其解展示了太阳灶对不同辐射输入的动态响应。
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