Ring binding: A form of loose leaf binding in which two or more rings pass through punched holes at the edge of the paper.

 
  • 鐵環(huán)裝:是活頁(yè)裝的一種。它用兩個(gè)或以上的鐵環(huán),穿過(guò)在紙邊打孔的紙張。
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