abrasive
adj. 粗糙的;有研磨作用的;伤人感情的;(声音)刺耳的,难听的; n. 研磨料
n.研磨剂;adj.研磨的
corkboard haversian nonenforceable porcellanous slipform sop下载迅蛙App
adj. 粗糙的;有研磨作用的;伤人感情的;(声音)刺耳的,难听的; n. 研磨料
n.研磨剂;adj.研磨的
corkboard haversian nonenforceable porcellanous slipform sop