直(zhi)接測數(shu)法是(shi)憑借照布鏡或(huo)織(zhi)物(wu)密度(du)分(fen)析鏡來完(wan)成。織(zhi)物(wu)密度(du)分(fen)析鏡的刻度(du)尺長(chang)度(du)為5cm,在分(fen)析鏡頭下(xia)面(mian),一塊長(chang)條(tiao)形(xing)玻(bo)璃片上(shang)刻有(you)一條(tiao)紅線(xian), 棉(mian)帆布 就是(shi)棉(mian)線(xian)布 俗稱CC56,還(huan)有(you)聚酯輸(shu)送(song)(song)帶(dai)、尼龍輸(shu)送(song)(song)帶(dai)、相(xiang)比棉(mian)帆布輸(shu)送(song)(song)帶(dai)拉(la)力大。棉(mian)帆布輸(shu)送(song)(song)帶(dai),適(shi)用于短距離、載量中等條(tiao)件下(xia)輸(shu)送(song)(song)物(wu)料(liao),拉(la)力比較低,承重有(you)一定的...