直接測數法是(shi)(shi)憑借照布(bu)(bu)鏡(jing)或織(zhi)物密度分(fen)析鏡(jing)來(lai)完成。織(zhi)物密度分(fen)析鏡(jing)的(de)(de)刻度尺長度為5cm,在(zai)分(fen)析鏡(jing)頭(tou)下面(mian),滌棉(mian)帆(fan)布(bu)(bu) 棉(mian)帆(fan)布(bu)(bu) 就是(shi)(shi)棉(mian)線布(bu)(bu) 俗稱CC56,還有聚酯輸(shu)(shu)送(song)(song)帶、尼龍(long)輸(shu)(shu)送(song)(song)帶、相比棉(mian)帆(fan)布(bu)(bu)輸(shu)(shu)送(song)(song)帶拉力(li)大。棉(mian)帆(fan)布(bu)(bu)輸(shu)(shu)送(song)(song)帶,適(shi)用于短(duan)距離、載量中等條件下輸(shu)(shu)送(song)(song)物料,拉力(li)比較低,承重有一定的(de)(de)限制(zhi)。由全棉(mian)帆(fan)布(bu)(bu)(CC)...