直(zhi)接測數法是憑(ping)借照布(bu)鏡(jing)或(huo)織(zhi)物(wu)密(mi)度分(fen)析鏡(jing)來完成。織(zhi)物(wu)密(mi)度分(fen)析鏡(jing)的(de)刻度尺長(chang)度為5cm,在分(fen)析鏡(jing)頭(tou)下(xia)面,一(yi)塊長(chang)條形玻璃片(pian)上刻有(you)(you)一(yi)條紅線, 棉(mian)帆布(bu) 就(jiu)是棉(mian)線布(bu) 俗稱CC56,還有(you)(you)聚酯輸(shu)(shu)送(song)帶、尼龍輸(shu)(shu)送(song)帶、相比棉(mian)帆布(bu)輸(shu)(shu)送(song)帶拉力大。棉(mian)帆布(bu)輸(shu)(shu)送(song)帶,適(shi)用(yong)于短距(ju)離(li)、載量(liang)中等條件下(xia)輸(shu)(shu)送(song)物(wu)料(liao),拉力比較低(di),承(cheng)重有(you)(you)一(yi)定的(de)...