直接測數法是憑借照布(bu)鏡(jing)或織(zhi)(zhi)物密度(du)分(fen)析(xi)鏡(jing)來(lai)完成(cheng)。織(zhi)(zhi)物密度(du)分(fen)析(xi)鏡(jing)的刻(ke)度(du)尺長度(du)為5cm,在(zai)分(fen)析(xi)鏡(jing)頭下面,一塊長條形玻璃片上(shang)刻(ke)有一條紅線, 全棉印花(hua)帆布(bu),純棉帆布(bu),顧名思義,就(jiu)是100%的棉織(zhi)(zhi)物了,棉織(zhi)(zhi)物的優點是吸濕性(xing)強,染色(se)性(xing)能(neng)好,手感柔軟,穿(chuan)著(zhu)舒(shu)適,外觀樸素,不易(yi)蟲(chong)蛀(zhu),堅牢耐用;其缺點就(jiu)是快干性(xing)能(neng)...