短语词组短語Wet sanding 水磨;溼法砂光;溼打磨法sanding device 撒砂裝置Sanding Belts 供應紙基砂帶;軟佈基砂帶;紙基砂帶;重型砂帶sanding disc 金剛砂研磨磐;砂紙Improper sanding 砂光不良sanding band 砂圈emergency sanding 緊急撒砂uneven sanding 磨毛不均sanding machine 砂光機 返回 sanding