直接(jie)測數法是(shi)憑(ping)借照布(bu)鏡或織物(wu)密(mi)度(du)分(fen)(fen)析(xi)鏡來完(wan)成。織物(wu)密(mi)度(du)分(fen)(fen)析(xi)鏡的刻(ke)度(du)尺長度(du)為5cm,在(zai)分(fen)(fen)析(xi)鏡頭(tou)下面(mian)(mian),一塊長條形(xing)玻璃片(pian)上(shang)刻(ke)有一條紅(hong)線, 從(cong)配料(liao)(liao)上(shang),布(bu)包與(yu)皮包相比,形(xing)狀不牢固(gu)(gu),很容(rong)易變(bian)形(xing),所以生(sheng)產布(bu)包時,一般會在(zai)面(mian)(mian)料(liao)(liao)上(shang)加壓一層(ceng)無紡布(bu)(盛唐都(dou):也就是(shi)女孩子經常用(yong)的壓縮(suo)面(mian)(mian)膜的原材料(liao)(liao))來穩固(gu)(gu)包形(xing),越重的無...