还有人认为，解剖一部教科书结构体系，一般分解成五个系统：知能系统、范文系统、导学系统、作业系统、符号系统。
There are people believe that a textbook anatomical structure system, generally broken down into five systems: knowledge and ability system, sample system, operating system and system of signs.
本发明提供一种可简单自如地进行分解和组装的作业的箱状体及与其相适应的新型板状连结构造。
The invention provides a box-shaped body enabling easy assembling and disassembling operations and a novel plate material connection structure suitable therefor.
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