Then the protection system with shelter belt and woodlands of sand dunes was constructed to control the local wind erosion and sandification.
建立完善沙岗林地和林带防护系统，控制了区域风蚀沙化；
After supervised classification we extracted residential area and the grass of shelter belt based on knowledge discovery, finally we got the accuracy assessment reports.
基于知识对监督分类的结果做后处理，准确地提取了居民地和防护林草类型，并对分类结果进行了精度评估。
The steed grabbed his master's belt in his teeth, carried him to shelter and then went to fetch the doctor.
马咬住主人的腰带，把他拖到一个避身之处，然后去找医生。
The steed grabbed his master's belt in his teeth, carried him to shelter and then went to fetch the doctor.
马咬住主人的腰带，把他拖到一个避身之处，然后去找医生。
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