直接測(ce)數(shu)法(fa)是憑借照布(bu)鏡或織物(wu)密度(du)(du)(du)分析(xi)鏡來完成。織物(wu)密度(du)(du)(du)分析(xi)鏡的(de)刻(ke)度(du)(du)(du)尺長(chang)度(du)(du)(du)為5cm,在分析(xi)鏡頭(tou)下面,一塊長(chang)條形(xing)玻璃片(pian)上刻(ke)有一條紅線(xian), 全棉印花帆布(bu),純棉帆布(bu),顧名思義(yi),就(jiu)是100%的(de)棉織物(wu)了,棉織物(wu)的(de)優點是吸濕性(xing)(xing)強,染色性(xing)(xing)能好(hao),手感柔軟,穿著舒適,外(wai)觀樸(pu)素,不易蟲蛀,堅牢耐用;其缺點就(jiu)是快干(gan)性(xing)(xing)能...