WZ series eddy - current brake.
WZ系列渦流制動器.
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WZ: Well, we are applying for PhD in your Economics Department.
我們在申請貴系的博士學位項目, 我可以問幾個問題嗎?
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Shao WZ . Object Oriented System Analysis. Beijing: Tsinghua University Press, 1998 ( in Chinese ) .
邵維忠. 面向對象的系統分析. 北京: 清華大學出版社, 1998.
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