直接測數(shu)法是憑借照(zhao)布鏡或織物(wu)密(mi)度(du)分析(xi)(xi)鏡來完成。織物(wu)密(mi)度(du)分析(xi)(xi)鏡的刻(ke)(ke)度(du)尺長(chang)(chang)度(du)為5cm,在(zai)分析(xi)(xi)鏡頭(tou)下面(mian),一塊長(chang)(chang)條形玻璃(li)片上刻(ke)(ke)有一條紅(hong)線, 不用(yong)洗(xi)(xi)(xi)衣粉(fen)清洗(xi)(xi)(xi):洗(xi)(xi)(xi)衣粉(fen)中的酶在(zai)陽(yang)光(guang)下回產生(sheng)化學反應(ying),生(sheng)成黃色(se)的物(wu)質(zhi),會使鞋(xie)子變黃。所以不建議使用(yong)洗(xi)(xi)(xi)衣粉(fen)清洗(xi)(xi)(xi)鞋(xie)子。巧用(yong)白(bai)色(se)紙(zhi)(zhi)巾:將洗(xi)(xi)(xi)好的鞋(xie)子用(yong)白(bai)紙(zhi)(zhi)的衛生(sheng)紙(zhi)(zhi)全面(mian)包裹起...