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- Yongding River sand land is the largest area of wind-sand land sand and is one of the most severe wind sand damage region in Beijing,Which has important influence to eco-entironment in Beijng. 永定河沙地是北京市面积最大的风沙化土地和风沙危害最严重的地区之一，对北京市的生态环境有重要影响。
- Yongding River sand land 永定河沙地
- Analysis of the Sand-drift Activity in Drifting Sand Land in Yongding River Beach Land in Beijing 北京市永定河河滩流动沙地风沙活动分析
- Hm ...so you are the Yongding River, he thought. 喔，你就是永定河，他想。
- Study on Soil Wind Erosion and Vegetation efficiency of Wind and Prevention Sand Resistance Artificial Vegetation at Sand-Land in Yongding River in Beijing. 北京市永定河沙地土壤风蚀与人工植被防风阻沙效益研究。
- Zhangjiakou and Chengde in Hebei surrounding the dam is, Yongding river downstream drainage areas and three sand zone is the main area of the sandstorm sources around the world. 在京津周边就有张家口和承德的坝上、坝下地区及永定河下游三大沙区，是京津地区主要的风沙源之一。
- Department ofgu an xian Haihe River alluvial plain of the Yongding River. 固安县系海河水系的永定河冲积平原。
- They hold river sand, pieces of iron and wood charcoal. 在一段很长的时期内，毒井中的水可能会导致致命的癌症。
- There was a high percent of mesophyte in Otindag Sand Land as well. 中生植物在该区占有相当大的比例，体现了该区地理位置和地理环境的特殊性。
- The landform on which ancient human activity relic located was interfluvial floodplain on Yongding River Alluvial Fan. 古人类活动遗址所处地貌部位为古永定河冲积扇的河间冲积平原。
- At this we all cheered. Of course, we would revisit that beautiful mountain village on the banks of the Yongding River! 听到这个提议我们都高兴地叫了起来。不用说，大家都很想再去看看永定河畔那座美丽的山村。
- He turned and gazed at the entirety of the Yongding River's scenery, remembering facts from his geography books. 他转过身去，注视着永定河远近的景观，记忆着与地理学有关的东西。
- So the Yongding River has not surrendered, he thought, this is not a shallow, humiliated, obedient brook. 永定河没有屈服，他想，这并不是一道屈辱的驯服的浅流。
- At this we all cheered.Of course,we would revisit that beautiful mountain village on the banks of the Yongding River! 听到这个提议我们都高兴地叫了起来。不用说，大家都很想再去看看永定河畔那座美丽的山村。
- There is large area of poor sandy soil along the Yongding River Valley in Langfang and is difficult to use. 廊坊市永定河流域有大面积贫瘠沙性土壤，难以开发利用。
- So this is the Yongding River, he thought, Suddenly he felt tired, his entire right arm ached and felt numb all at once. 这就是永定河呵，他想。 他忽然觉得累了，整个一条右臂又酸又麻。
- To dig the river sands, jump in the field. 落单幼时,却情尚真。河里挖沙,田间跳步。
- Study on the initial planting density and its adjustment of Pinus sylvestris var. Mongolica Litvin. Artificial forest in the sand land. 沙地樟子松人工林初植密度及其调控研究。
- With long strides he crunched along the shingle, biting his lips-he had already left the girl behind: As soon as the Yongding River reached the plain it surrendered. 他大踏步地踏着砾石块，咬着嘴唇走着，那位姑娘已经被他甩在背后了。 永定河来到平原就屈服了。
- Project Content : Along the dykes of Yongding River course to build the tourism and sightseeing zone with the length of 21.2 kilometers and width of 800 meters. 项目内容： 沿永定河故道大堤建设长21.;2公里、宽800米的旅游观光产业带，具体包括五项内容：一是千亩桃花园；
