首先，根据工程机械图纸和明细表等现有资料，在计算机中初步自动地确定出主导变量、局部变量和作用变量。

First, by the information in existence, such as engineering drawings and lists, the master variables, local variables and activate variables are fixed out automatically.

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并列出工程所需的设备明细表以及对工程举行了经济技术分析。

It enumerates the specification of the devices and apply analyzing about economic-technical.

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能够借助技术图纸及部件明细表核查产品制造的可行性，并向工程部做出反馈；

Ability to check the manufacture possibility with help of technical drawings, bill of materials and give feed backs to the engineering department;

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