The method of oxidation ditch is a kind of typical craft in bio-chemical wastewater processing technique.
氧化沟方法是生化处理技术中的一种典型的废水处理工艺。
With the method of dry ditching, the paper studied the affection of deep ditch manuring measure to the weight, composition and distribution scope of apple root system.
用干挖壕沟法研究了深沟施肥农艺措施对旱作苹果树根系的重量、结构和分布范围等的影响。
The method for correction of singular points of wells and the calculation method of well row replaced by a ditch in the numerical FEM and FDM computations were proposed in this paper.
对有限元和有限差分的数值计算提出了井孔奇点修正和以沟代井列的计算方法，从而提高了离散化网络的计算精度，并可简化取代三维问题为二维。
The invention discloses an integrated oxidation ditch and a construction and operation method thereof.
本发明公开了一种一体化氧化沟及其建造和操作方法。
In this paper, the method of treating harbor chemical wastewater by oxidation ditch process is presented.
试验证明，采用氧化沟法处理港口化学品污水是相当有效和切实可行的。
Based on the theory of elastic-plastic deformation, according to the finite element method, this paper presents a nonlinear analysis of the distribution of the soil pressure of the ditch conduit.
表明对大型沟埋式管道的上压力，采用弹塑性理论的非线性分析是比较符合实际的，其结果可供设计参考。
Through analysing the main factors which affect the water-cut of the flood-cut-off ditch, it advances a new theory and method to design the cut by dividing the ditch into several parts.
详细分析了影响截留泡过水断面的主要因素，提出了采用分段法设计断面的原理及方法。
The paper has adopted object function method and created optimization model of foundation ditch precipitation well cluster.
采用目标函数法，建立基坑降水井群优化模型。
The paper introduces the content, requirement, method of foundation ditch investigation and the treating method for some special situation.
以下介绍验槽的内容、要求、方法以及在施工中所遇到的一些情况及处理方法。
The paper introduces the content, requirement, method of foundation ditch investigation and the treating method for some special situation.
以下介绍验槽的内容、要求、方法以及在施工中所遇到的一些情况及处理方法。
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