直接測數法(fa)是憑借照(zhao)布(bu)鏡或織(zhi)物(wu)(wu)密度分析鏡來完成。織(zhi)物(wu)(wu)密度分析鏡的刻度尺長度為5cm,在(zai)分析鏡頭下面(mian),24安染(ran)色(se)全棉(mian)帆布(bu) 全棉(mian)印花(hua)帆布(bu),純棉(mian)帆布(bu),顧名思義,就是100%的棉(mian)織(zhi)物(wu)(wu)了(le),棉(mian)織(zhi)物(wu)(wu)的優點(dian)(dian)是吸濕性(xing)強,染(ran)色(se)性(xing)能好,手感柔(rou)軟,穿著舒適,外觀(guan)樸素,不(bu)易蟲蛀(zhu),堅(jian)牢耐(nai)用(yong);其缺點(dian)(dian)就是快干性(xing)能差。全棉(mian)印花(hua)帆...