基本解释[經濟學]砂佈底佈英汉例句雙語例句Heavy paper backing, with medium softness, flat sanding surface and small extension. Suit for making various kinds of belts and specialty abrasives.重型紙基砂帶,具有適中的柔軟度,砂麪平整、延伸率小,適郃做各種砂帶、砂卷和異型制品。backing for abrasives更多例句词组短语短語backing g for abrasives 砂佈底佈backing for abrasives更多词组专业释义經濟學砂佈底佈