直接測數法是(shi)憑借(jie)照布鏡(jing)(jing)或織(zhi)物密度(du)(du)(du)分析鏡(jing)(jing)來完成。織(zhi)物密度(du)(du)(du)分析鏡(jing)(jing)的(de)刻度(du)(du)(du)尺(chi)長度(du)(du)(du)為5cm,在(zai)分析鏡(jing)(jing)頭下(xia)面,一塊長條形玻璃片上刻有一條紅線, 全棉(mian)印花帆(fan)布,純棉(mian)帆(fan)布,顧名思(si)義,就(jiu)是(shi)100%的(de)棉(mian)織(zhi)物了,棉(mian)織(zhi)物的(de)優點是(shi)吸濕性強,染(ran)色性能好,手感(gan)柔軟,穿著舒適,外觀樸素(su),不易(yi)蟲蛀,堅牢耐用;其(qi)缺點就(jiu)是(shi)快干性能...