This paper begins with the definition of education services and quantitative unit.
本文讨论教育服务的定义和服务产出的数量单位。
This paper begins by researching beverage packing material and creates database of beverage packing material.
从研究饮料包装材料出发,建立饮料包装材料数据库。
This paper begins with the discussion on the meaning of empowerment and the various definitions describing the process.
这篇论文首先是源于对激励意义的讨论和对各种定义的过程描述。
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