直接測數法是憑借照布(bu)(bu)鏡(jing)(jing)或織物(wu)密度(du)分析(xi)鏡(jing)(jing)來完成。織物(wu)密度(du)分析(xi)鏡(jing)(jing)的刻度(du)尺長(chang)度(du)為5cm,在分析(xi)鏡(jing)(jing)頭下面(mian),20安染色全棉(mian)(mian)帆(fan)(fan)(fan)布(bu)(bu) 棉(mian)(mian)帆(fan)(fan)(fan)布(bu)(bu) 就是棉(mian)(mian)線(xian)布(bu)(bu) 俗稱CC56,還有聚酯(zhi)輸送(song)帶(dai)、尼龍(long)輸送(song)帶(dai)、相比棉(mian)(mian)帆(fan)(fan)(fan)布(bu)(bu)輸送(song)帶(dai)拉力大(da)。棉(mian)(mian)帆(fan)(fan)(fan)布(bu)(bu)輸送(song)帶(dai),適用于(yu)短距離、載量中(zhong)等條件下輸送(song)物(wu)料(liao),拉力比較低(di),承重(zhong)有一(yi)定的限制(zhi)。由全棉(mian)(mian)帆(fan)(fan)(fan)...