装订封皮
Binding cover
以上为机器翻译结果，长、整句建议使用 人工翻译 。
它还可以用相同的封皮装订不同的书。
It can also be used the same cover binding different books.
youdao
本发明公开了一种装订装置，其包括一基座件，其适于固定在封皮上；
The binding mechanism includes one base suitable for being fixed to cover and one paper holder comprising two passage parts and two pin parts held in the passage parts separately.
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