西海固
- 网络Xiji Haiyuan Guyuan region
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西海固
Xiji Haiyuan Guyuan region
固海,Guihai,音标,读音,翻译,... ... ) Guihai 固海 ) Xiji Haiyuan Guyuan region 西海固 ) consolidation of sea dyke 海堤加固 ...
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Influence of Geological and Geomorphic Calamities on Environment and Their Countermeasures in Xihaigu Region of Ningxia
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