直接測數(shu)法是憑借照布(bu)鏡(jing)或織物(wu)(wu)密(mi)度分析(xi)鏡(jing)來完成(cheng)。織物(wu)(wu)密(mi)度分析(xi)鏡(jing)的刻度尺(chi)長(chang)度為5cm,在(zai)分析(xi)鏡(jing)頭下面,一(yi)塊長(chang)條形玻璃片(pian)上刻有(you)一(yi)條紅線, 棉帆布(bu) 就是棉線布(bu) 俗稱CC56,還有(you)聚酯輸(shu)送(song)(song)帶、尼龍輸(shu)送(song)(song)帶、相比棉帆布(bu)輸(shu)送(song)(song)帶拉(la)力(li)大。棉帆布(bu)輸(shu)送(song)(song)帶,適用于短距離(li)、載量(liang)中等條件下輸(shu)送(song)(song)物(wu)(wu)料(liao),拉(la)力(li)比較低,承(cheng)重有(you)一(yi)定的...