直(zhi)接測(ce)數法是憑借照布鏡或織(zhi)物(wu)(wu)密度(du)分(fen)析鏡來完(wan)成。織(zhi)物(wu)(wu)密度(du)分(fen)析鏡的(de)刻度(du)尺長度(du)為5cm,在(zai)分(fen)析鏡頭下面,YH2266印(yin)花(hua)帆布 棉帆布 就是棉線布 俗稱(cheng)CC56,還(huan)有(you)聚酯輸(shu)(shu)(shu)送(song)帶(dai)、尼龍(long)輸(shu)(shu)(shu)送(song)帶(dai)、相比棉帆布輸(shu)(shu)(shu)送(song)帶(dai)拉力大。棉帆布輸(shu)(shu)(shu)送(song)帶(dai),適用(yong)于(yu)短距離、載量中等條件下輸(shu)(shu)(shu)送(song)物(wu)(wu)料,拉力比較(jiao)低,承重有(you)一(yi)定的(de)限制。由全棉...