直接(jie)測數法是憑借照布鏡(jing)或織(zhi)物密度(du)(du)分析鏡(jing)來完成。織(zhi)物密度(du)(du)分析鏡(jing)的(de)刻度(du)(du)尺長度(du)(du)為5cm,在(zai)(zai)分析鏡(jing)頭下面,24安工藝全(quan)棉帆布 維(wei)(wei)尼(ni)綸纖(xian)維(wei)(wei)強(qiang)度(du)(du)達200牛/(毫米·層),彈(dan)性(xing)伸(shen)長比尼(ni)龍纖(xian)維(wei)(wei)小,易(yi)與橡膠粘(zhan)合(he),耐熱性(xing)能(neng)好,但(dan)濕態時(shi)強(qiang)度(du)(du)要(yao)降(jiang)低10~25%,僅(jin)在(zai)(zai)中(zhong)國(guo)、日本等少數國(guo)家應用(yong)。在(zai)(zai)編織(zhi)帶芯時(shi)可(ke)以只用(yong)一種(zhong)纖(xian)...