直接(jie)測數法是(shi)憑(ping)借(jie)照布(bu)鏡(jing)或織(zhi)物(wu)密(mi)度分析(xi)鏡(jing)來完(wan)成。織(zhi)物(wu)密(mi)度分析(xi)鏡(jing)的(de)刻(ke)度尺長度為5cm,在分析(xi)鏡(jing)頭(tou)下面,一塊(kuai)長條形(xing)玻璃(li)片上刻(ke)有一條紅線(xian), 棉(mian)帆(fan)布(bu) 就是(shi)棉(mian)線(xian)布(bu) 俗稱CC56,還有聚酯輸(shu)送(song)帶、尼龍(long)輸(shu)送(song)帶、相(xiang)比(bi)(bi)棉(mian)帆(fan)布(bu)輸(shu)送(song)帶拉力大(da)。棉(mian)帆(fan)布(bu)輸(shu)送(song)帶,適用于短距離、載量中等條件(jian)下輸(shu)送(song)物(wu)料,拉力比(bi)(bi)較低,承重有一定的(de)...