Collating mark: A distinctive rectangular mark, or short thick rule printed at successively lower positions on the spine of adjacent sections of a book, forming a stepped pattern, to denote correct gathering sequence.是什么意思_Collating mark: A distinctive rectangular mark, or short thick rule printed at successively lower positions on the spine of adjacent sections of a book, forming a stepped pattern, to denote correct gathering sequence.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句