公差与配合在线查询程序的编写

Tolerance and Fit Online Inquiry Write Programs

零件的基本尺寸、公差代号、公差等级查询零件的上下偏差在工程上经常应用,同时由于孔、轴的基本公差数据表中数据多,很容易造成查询错误,同时如果机械工程图中数据较多,查询工作繁琐,探讨利用PHP+MySQL建立公差与配合在线查询程序的方法。

The basic dimensions of parts,tolerance code, the upper and lower parts of the query deviation tolerance level is often used in the project ,and because the basic tolerance hole axis data in the data table, very easy to cause a query error, and if the mechanical drawing more data,inquiries and becomes cumbersome,paper explores the use of PHP＋MySQL to establish tolerance and fit line query procedures.