Backing Marking of the shoulder or joint on the spine of a hard cover book into which the cover boards will fit after back rounding.
精装书籍在圆脊后两旁压成肩膊或关节，以套入书皮板纸。
英文例句大全为您提供rounding英文例句大全,rounding英文造句,关于rounding的英语句子,单词rounding怎么造句,rounding英文例句大全有哪些,哪些英语句子是关于rounding,英语单词rounding的句子,单词rounding如何造句,rounding怎么造句等。