Development of soil erosion models abroad 国外土壤侵蚀模型发展概述
Development of soil ' s anisotropy study 土体各向异性研究进展
The occurrence and development of soil erosion along slope were showed clearly 结皮显著地地影响着土壤侵蚀。
Development of soil and water conservation in america and inspirations to china 美国水土保持的特点及对我国的启示
Study on relationship between earthworm density and the development of soil environmental factors 蚯蚓数量动态和环境因素关系的研究
Carrying out soil and water conservation law and promoting great development of soil conservation cause 贯彻落实水土保持法促进水保事业大发展
Sustainable development of soil and water conservation : turn from ecological construction to ecological rehabilitation 生态建设到生态修复的转向
Pondering on sustainable development of soil and water conservation ecological building of the yellow river 关于黄河水土保持生态建设可持续发展的思考
Pushing on development of soil conservation through setting up examples and supporting key units practiced in songtao county 松桃县树典型扶重点推进水保事业发展
The three phases revealed the development of soil structure , which was the process from loosen to tighten , from unstability to stability 这三个阶段表明了表土结构经历了有疏松到紧实,有不稳定到相对稳定的过程。 3