American Journal of Engineering and Applied Sciences
ISSN Print: 1941-7020
ISSN Online: 1941-7039
主页: http://thescipub.com/journals/ajeas
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		American Journal of Engineering and Applied SciencesISSN Print: 1941-7020 ISSN Online: 1941-7039 主页: http://thescipub.com/journals/ajeas 
 
 
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