The language not only have various data types often used in engineering data base, but also can describe the structures of engineering objects.
这种语言不仅具有工程数据库中常用的数据类型，而且还具有描述工程对象结构的能力。
The language not only have various data types often used in engineering data base, but also can describe the structures of engineering objects.
这种语言不仅具有工程数据库中常用的数据类型，而且还具有描述工程对象结构的能力。
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