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。
2
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。
3
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.