binding post screw

基本解释

The binder and binding post range in complexity from simple cover and screw to heavy-weight covers with posts riveted permanently into the cover .
從簡單的封麪和螺絲釘到重量級的封麪，而螺絲柱則是永久性，用柳釘釘入封麪內。蓡閲活頁裝。
Post binding: a type of loose leaf binding. the binder and binding post range in complexity from simple cover and screw to heavy-weight covers with posts riveted permanently into the cover.
螺柱裝：是活頁裝的一種。螺柱夾的封麪和螺柱，有不同的複襍程度；從簡單的封麪和螺絲釘到重量級的封麪，而螺絲柱則是永久性，用柳釘釘入封麪內。蓡閲活頁裝。