直接(jie)測數法是(shi)憑借照布(bu)(bu)鏡(jing)或織物(wu)(wu)密度(du)(du)分析(xi)鏡(jing)來完成。織物(wu)(wu)密度(du)(du)分析(xi)鏡(jing)的(de)刻度(du)(du)尺長度(du)(du)為(wei)5cm,在分析(xi)鏡(jing)頭下(xia)面,一塊長條形玻璃片上刻有一條紅(hong)線, 全棉印花帆布(bu)(bu),純棉帆布(bu)(bu),顧名思義,就是(shi)100%的(de)棉織物(wu)(wu)了,棉織物(wu)(wu)的(de)優點是(shi)吸濕性(xing)(xing)強,染色(se)性(xing)(xing)能好,手(shou)感柔軟,穿著舒(shu)適(shi),外觀樸(pu)素,不易蟲(chong)蛀(zhu),堅牢耐用;其(qi)缺點就是(shi)快(kuai)干(gan)性(xing)(xing)能...