摘 要:该文分析了土壤施用有机磷农药后,有机磷农药在土壤中的主要环境行为和迁移转化规律,概述了生物修复技术的研究进展。 关键词:有机磷农药;土壤;生物修复;农药残留 中图分类号 X592.02 文献标识码 A 文章编号 1007-7731(2017)08-0093-03 Abstract:Soil application of organophosphorus pesticide was r
The principle of conjugate cam shedding mechanism forthe outside tappets with dual driving shafts is discussed,and its design conditions and parameters are stud