erosion level meaning in Chinese

侵蚀剥削面
侵蚀水平面

Horizontal road marking . markings applied on the roads . determination of erosion level
路面水平标记.马路标记.磨损度测定
However , the error ( mistake ) results from erosion level human generated . in addition , it takes time and uses great efforts . these two methods can not meet the need of dynamic survey on soil losses distribution temporally and spatially in soil and water conservation very well
虽然二者都可依据部颁技术规程获得调查或监测图件和相关统计数据结果，但均因存在人为确定侵蚀等级的主观性，加上投入人力、物力规模大，越难越不适应适时、动态监测水土流失时空分布的水保要求。