直接(jie)測(ce)數(shu)法(fa)是(shi)(shi)(shi)憑借照布(bu)鏡或織物(wu)(wu)(wu)密(mi)(mi)度(du)分析(xi)鏡來完(wan)成。織物(wu)(wu)(wu)密(mi)(mi)度(du)分析(xi)鏡的刻(ke)度(du)尺長(chang)度(du)為(wei)5cm,在分析(xi)鏡頭下(xia)面,一塊(kuai)長(chang)條形玻璃片(pian)上(shang)刻(ke)有一條紅線, 全(quan)棉(mian)印花帆布(bu),純棉(mian)帆布(bu),顧名(ming)思義,就是(shi)(shi)(shi)100%的棉(mian)織物(wu)(wu)(wu)了,棉(mian)織物(wu)(wu)(wu)的優(you)點(dian)是(shi)(shi)(shi)吸濕性(xing)強(qiang),染色性(xing)能(neng)好,手(shou)感柔軟,穿著舒適,外觀樸素,不易蟲蛀,堅牢耐用;其(qi)缺點(dian)就是(shi)(shi)(shi)快干性(xing)能(neng)...