直接測數法是(shi)憑借(jie)照布鏡(jing)(jing)(jing)或織物(wu)(wu)密度分(fen)析(xi)鏡(jing)(jing)(jing)來完成。織物(wu)(wu)密度分(fen)析(xi)鏡(jing)(jing)(jing)的刻(ke)度尺長度為5cm,在分(fen)析(xi)鏡(jing)(jing)(jing)頭下面,滌(di)棉(mian)帆(fan)布 全棉(mian)印花(hua)帆(fan)布,純棉(mian)帆(fan)布,顧(gu)名思(si)義,就是(shi)100%的棉(mian)織物(wu)(wu)了,棉(mian)織物(wu)(wu)的優點(dian)(dian)是(shi)吸濕性(xing)強(qiang),染色性(xing)能(neng)好,手感柔(rou)軟(ruan),穿(chuan)著舒適,外觀(guan)樸素,不易(yi)蟲蛀,堅牢耐用(yong);其(qi)缺點(dian)(dian)就是(shi)快干(gan)性(xing)能(neng)差。全棉(mian)印花(hua)帆(fan)布是(shi)箱包面...