直(zhi)接測(ce)數(shu)法是(shi)憑借(jie)照布(bu)鏡或織物(wu)密度(du)分(fen)析鏡來完成。織物(wu)密度(du)分(fen)析鏡的(de)刻(ke)度(du)尺長度(du)為5cm,在分(fen)析鏡頭下面,一塊長條形玻璃片上刻(ke)有一條紅(hong)線(xian), 全棉(mian)(mian)印花(hua)帆(fan)布(bu),純棉(mian)(mian)帆(fan)布(bu),顧名思義,就是(shi)100%的(de)棉(mian)(mian)織物(wu)了,棉(mian)(mian)織物(wu)的(de)優點是(shi)吸濕(shi)性(xing)強,染色性(xing)能好(hao),手感(gan)柔軟,穿著舒適,外(wai)觀(guan)樸(pu)素(su),不易蟲蛀,堅牢耐用;其缺點就是(shi)快干性(xing)能...