直(zhi)接測數法(fa)是(shi)憑借照(zhao)布(bu)鏡(jing)或織(zhi)物(wu)密(mi)度分(fen)(fen)(fen)析鏡(jing)來完(wan)成。織(zhi)物(wu)密(mi)度分(fen)(fen)(fen)析鏡(jing)的刻度尺長度為5cm,在(zai)分(fen)(fen)(fen)析鏡(jing)頭下(xia)面,20安染色全棉(mian)帆(fan)(fan)布(bu) 棉(mian)帆(fan)(fan)布(bu) 就(jiu)是(shi)棉(mian)線布(bu) 俗稱CC56,還有聚酯輸送(song)帶(dai)、尼龍輸送(song)帶(dai)、相比棉(mian)帆(fan)(fan)布(bu)輸送(song)帶(dai)拉(la)力大(da)。棉(mian)帆(fan)(fan)布(bu)輸送(song)帶(dai),適用(yong)于短距離、載(zai)量中等條件(jian)下(xia)輸送(song)物(wu)料(liao),拉(la)力比較低,承重有一定的限制(zhi)。由全棉(mian)帆(fan)(fan)...