直接測數法(fa)是憑借(jie)照(zhao)布鏡(jing)(jing)或織(zhi)物(wu)(wu)密(mi)度(du)分(fen)析鏡(jing)(jing)來完成。織(zhi)物(wu)(wu)密(mi)度(du)分(fen)析鏡(jing)(jing)的(de)刻度(du)尺長度(du)為5cm,在(zai)分(fen)析鏡(jing)(jing)頭下(xia)面,12安染色全棉帆布 維(wei)(wei)尼(ni)綸(lun)纖(xian)維(wei)(wei)強度(du)達200牛/(毫米·層),彈性(xing)伸長比尼(ni)龍(long)纖(xian)維(wei)(wei)小,易與橡膠(jiao)粘合,耐(nai)熱(re)性(xing)能好(hao),但濕態時(shi)(shi)強度(du)要(yao)降低10~25%,僅在(zai)中國、日本等少數國家應(ying)用。在(zai)編織(zhi)帶芯時(shi)(shi)可(ke)以只(zhi)用一種纖(xian)...