直接測數法是憑借照布鏡或織(zhi)物密度(du)分(fen)(fen)析(xi)鏡來完(wan)成。織(zhi)物密度(du)分(fen)(fen)析(xi)鏡的(de)刻(ke)度(du)尺長(chang)度(du)為(wei)5cm,在分(fen)(fen)析(xi)鏡頭(tou)下面,一塊(kuai)長(chang)條形(xing)玻璃片上刻(ke)有一條紅線, 全棉印(yin)花帆(fan)布,純棉帆(fan)布,顧(gu)名思義,就(jiu)是100%的(de)棉織(zhi)物了,棉織(zhi)物的(de)優點(dian)(dian)是吸(xi)濕性強,染色性能好(hao),手感柔(rou)軟(ruan),穿著舒適,外觀樸素,不(bu)易蟲蛀,堅牢耐用(yong);其缺點(dian)(dian)就(jiu)是快干性能...