直接測數法(fa)是憑借照布(bu)鏡(jing)或織物密度分(fen)析(xi)鏡(jing)來完(wan)成。織物密度分(fen)析(xi)鏡(jing)的刻度尺長度為5cm,在分(fen)析(xi)鏡(jing)頭下面,雙徑單緯全(quan)棉帆(fan)布(bu) 棉帆(fan)布(bu) 就(jiu)是棉線(xian)布(bu) 俗(su)稱CC56,還有(you)聚酯輸(shu)送(song)帶、尼龍輸(shu)送(song)帶、相(xiang)比棉帆(fan)布(bu)輸(shu)送(song)帶拉力(li)大。棉帆(fan)布(bu)輸(shu)送(song)帶,適用于短距離、載(zai)量中等(deng)條件下輸(shu)送(song)物料,拉力(li)比較低,承重有(you)一(yi)定(ding)的限(xian)制。由全(quan)棉帆(fan)布(bu)...