直接測數法是憑借照布(bu)鏡或織物(wu)(wu)密度分(fen)析鏡來完成。織物(wu)(wu)密度分(fen)析鏡的(de)刻度尺長度為(wei)5cm,在分(fen)析鏡頭下面,20安(an)染色(se)全(quan)棉(mian)(mian)(mian)帆(fan)布(bu) 全(quan)棉(mian)(mian)(mian)印花帆(fan)布(bu),純(chun)棉(mian)(mian)(mian)帆(fan)布(bu),顧名(ming)思義,就是100%的(de)棉(mian)(mian)(mian)織物(wu)(wu)了,棉(mian)(mian)(mian)織物(wu)(wu)的(de)優點(dian)是吸濕性強,染色(se)性能好,手感(gan)柔軟(ruan),穿(chuan)著舒適,外觀樸素,不易蟲蛀,堅牢耐(nai)用;其(qi)缺點(dian)就是快干性能差(cha)。全(quan)棉(mian)(mian)(mian)印花帆(fan)...