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[期刊论文] 作者:Wen-Jun Duan,Hai Ran,Sheng-Lei, 来源:植物学报(英文版) 年份:2004
Continuous and prolonged human disturbances have caused severe degradation of a large portion of lowland in South China, and how to restore such degraded ecosys...
[期刊论文] 作者:YANG Jiu-jun,Hai Ran,DONG Yan-, 来源:武汉理工大学学报英 年份:2004
The effects of the component gradient distribution at interface and the fiber gradient distribution on the strength of cement-based materials were studied.The r...
[期刊论文] 作者:YANG Jiu-jun,Hai Ran,DONG Yan-, 来源:武汉理工大学学报(材料科学版)英 年份:2003
The effects of the component gradient distribution at interface and the fiber gradient distribution on the strength of cement-based materials were studied.The r...
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