single-plyCOCA²³⁹⁷⁰⁰BNC¹⁰⁴⁵⁸⁴⁺⁶ 基本例句 🌏单层护板 Binding board: Board used in the covers of a case- bound book. Usually of good quality and single-ply. 书面板纸：精装书央所用的板纸，通常是高品质的单层板纸。 ebigear This performance record has made Firestone Building Products the leading supplier of Single-Ply Roofing Systems. 其出色的性能使得凡士通建筑产品公司成为单层屋顶系统生产的龙头。 gitom