A database of pressing die standard parts has been established with query realized by SQL statements.

建立了冲压模具标准件的数据库。利用SQL实现标准件参数的查询。

youdao

A database of pressing die standard parts has been established with query realized by SQL statements.

建立了冲压模具标准件的数据库。利用SQL实现标准件参数的查询。

youdao