問題詳情
84. 對於砂紙的敘述，下列何者錯誤？
(A)砂紙分為一般砂紙與耐水砂紙兩種，普通砂紙只適合乾磨，耐水砂紙則是沾水研磨，又稱為濕磨或水磨
(B)砂紙的重量會影響到砂紙的可彎曲性、韌性、耐機械性
(C)製作砂紙的材料以氧化鋁及炭化矽為主，氧化鋁通常製成普通砂紙，用於乾磨；而炭化矽通常製成耐水砂紙
(D)指每一平方公分的網目數，如＃100砂紙就是在 1cm＊1cm 的面積裡，分佈了100＊100 粒研磨顆粒
(A)砂紙分為一般砂紙與耐水砂紙兩種，普通砂紙只適合乾磨，耐水砂紙則是沾水研磨，又稱為濕磨或水磨
(B)砂紙的重量會影響到砂紙的可彎曲性、韌性、耐機械性
(C)製作砂紙的材料以氧化鋁及炭化矽為主，氧化鋁通常製成普通砂紙，用於乾磨；而炭化矽通常製成耐水砂紙
(D)指每一平方公分的網目數，如＃100砂紙就是在 1cm＊1cm 的面積裡，分佈了100＊100 粒研磨顆粒
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