covering letter (附于包裹或信件内用于说明或附言的)附信
covering power 遮盖力
protective covering 保护敷层;防护涂层;保护层
floor covering 地板;楼面
面层 covering layer 保护层;
盖层 wall covering 墙面涂料;墙面材料
the outer covering 外面
盖物 covering machine 包线机
short covering 补进,抛空补回
covering surface
盖面 roof covering 屋面
盖层;
屋面;屋顶
盖 body covering 身体外层