双线圈装用连续的双圈铁丝绕穿过打在书本订口的方孔而成的一种活页装。

Wire-o binding a method of loose-leaf binding in which a continuous double loop of wire runs through punched slots along the binding side of a booklet.

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包封面：在书芯(用铁丝平订，胶装或线装造成)的脊部加胶，贴上纸或纸板书皮的情况。

Wrappering: Attaching a paper or board cover by gluing at the spine of a book block which may be stabbed, adhesive bound or sewn.

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包封面：在书芯(用铁丝平订，胶装或线装造成)的脊部加胶，贴上纸或纸板书皮的情况。

Wrappering: Attaching a paper or board cover by gluing at the spine of a book block which may be stabbed, adhesive bound or sewn.

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