直接測數法是憑借(jie)照布鏡或織(zhi)(zhi)物(wu)(wu)密(mi)度分(fen)析(xi)鏡來完成。織(zhi)(zhi)物(wu)(wu)密(mi)度分(fen)析(xi)鏡的刻度尺長度為(wei)5cm,在分(fen)析(xi)鏡頭(tou)下面,一塊(kuai)長條形玻(bo)璃(li)片上刻有一條紅線, 全棉印花帆(fan)布,純棉帆(fan)布,顧名思(si)義,就(jiu)是100%的棉織(zhi)(zhi)物(wu)(wu)了,棉織(zhi)(zhi)物(wu)(wu)的優點是吸濕(shi)性(xing)強(qiang),染色性(xing)能(neng)好,手感柔軟,穿(chuan)著舒適,外觀(guan)樸素,不易蟲(chong)蛀,堅牢(lao)耐(nai)用;其缺(que)點就(jiu)是快干(gan)性(xing)能(neng)...