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ABSTRACTS |
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| Authors: | XIA Heng-liang ;LIANG Yao-wen ;WANG Xiao-ping |
| Institution: | [1]Party School, Nanning Railway Administration, Liuzhou 545007, Guangxi, China; [2]Liuzhou FreightTransport Center, Nanning Railway Administration, Liuzhou 545007, Guangxi, China |
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