Perfect and mature methodology for data base design can make the process more systematizing and engineering.

数据库设计方法学的成熟与完善，将使这一过程交得更加系统化、工程化。

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It is an important factor for the perfect matching between the maximal input power of the hydraulic oil pump and the maximum output power of the engine in the design process of the hydraulic shovel.

液压油泵的最大输入功率与发动机的最大输出功率之间的匹配问题是液压挖掘机设计过程中的一个重要内容。

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The assessment of green product is very important to guide the design process and perfect the design scheme.

绿色设计评价是绿色设计的重要环节之一，对指导设计过程的进行和对设计方案的完善具有重要作用。

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