您要查找的是不是:
- wind photosynthetic characteristics spp. are lower than that of the other three species water erosion region 其他树种
- water erosion region 水蚀区
- These stones have obvious marks of water erosion. 这些石头有着明显的被水冲蚀的痕迹。
- GIS Based Evaluation Method for Potential Hazard Degree of Representative Water Erosion Regions in China 基于GIS的中国水蚀区土壤侵蚀后果危险度研究方法
- Gully region is the most severe place of soil and water erosion in the catchment scale of Loess Plateau. 在黄土丘陵沟壑区,沟坡是小流域尺度上水土流失最为活跃的部分,对其水热条件的了解是进行综合治理的基础。
- The total soil erosion area in the whole country is 3.56 million km2,water erosion being 1.65 million km2 and wind erosion area 1.91 million km2. 全国水土流失总面积356万平方公里。其中水蚀165万平方公里,风蚀191万平方公里。
- The total soil erosion area in the whole country is 3.56 million km2, water erosion being 1.65 million km2 and wind erosion area 1.91 million km2. 全国水土流失总面积356万平方公里。其中水蚀165万平方公里,风蚀191万平方公里。
- Soil water erosion is a complex physicochemical process. 土壤水蚀是一个复杂的物理化学过程。
- The forecasting of those soil and water losses types such as water erosion, wind erosion, gravity erosion and mudflow should be paid equal attention. 对水土流失中水蚀、风蚀、重力侵蚀、泥石流等应同样认真预测;
- Soil and Water Erosion (SWE) bulletin is an important part of SWEM. 水土流失公告是水土保持监测工作的一项重要工作内容。
- Water erosion on the tree also has a role in the erosion. 海水的侵蚀也对树具有一定的侵蚀作用。
- The soil straw cover of farmland is a main method to prevent the soil and water erosion,it is very important to research the relation between the straw cover and the wind erosion. 农田地表秸秆覆盖是防止水土流失的一项主要措施,研究秸秆覆盖度与土壤风蚀、水蚀的定量关系对农田采取合理的覆盖形式有重要的指导意义。
- The total area of the soil erosion has reduced from 3.67 million km2 in late 1980s to 3.56 million km2 in late 1990s, with 110000 km2 reduced in ten years, among which, water erosion reduced by 140000 km2 and wind erosion increased by 30000 km2. 全国水土流失总面积由20世纪80年代末的367万平方公里减少到90年代末的356万平方公里,10年间减少了11万平方公里,其中水蚀减少了14万平方公里,风蚀增加了3万平方公里。
- In loess hilly-gully region covered by sheet sand,soil water erosion process is different from typical loess hilly-gully region because of worse natural environment and loose land surface material. 在片沙覆盖的黄土丘陵区,由于恶劣的自然环境及松散的地表组成物质,土壤的水蚀过程明显地不同于典型的黄土丘陵区。
- Abstract: In loess hilly-gully region covered by sheet sand,soil water erosion process is different from typical loess hilly-gully region because of worse natural environment and loose land surface material. 文摘:在片沙覆盖的黄土丘陵区,由于恶劣的自然环境及松散的地表组成物质,土壤的水蚀过程明显地不同于典型的黄土丘陵区。
- The total area of the soil erosion has reduced from 3.67 million km2 in late 1980s to 3.56 million km2 in late 1990s,with 110000 km2 reduced in ten years,among which,water erosion reduced by 140000 km2 and wind erosion increased by 30000 km2. 全国水土流失总面积由20世纪80年代末的367万平方公里减少到90年代末的356万平方公里,10年间减少了11万平方公里,其中水蚀减少了14万平方公里,风蚀增加了3万平方公里。
- Based on the characters of water erosion and rock clasts, the Zhangxia Loess is possibly a product of aeolian-talus-pluvial process. 张夏黄土下部呈现明显的水流侵蚀痕迹,中间夹有围岩碎屑,应属于风成、坡积、洪积成因的黄土状土。
- Because of long-time water erosion and weathering , the furface of the stone becomes uneven, looking like a rough sea. 由于长年被水流冲蚀溶蚀及风化作用,使岩石表面凸凹不平,如同风吹过水面,卷起千层浪。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- The water erosion is the most serious fact,which affects potentially the CFB boiler performance. 循环流化床锅炉水冷壁管的磨损是影响循环流化床锅炉运行的一个主要因素。