直接測數(shu)法是(shi)憑借照布(bu)鏡(jing)或織(zhi)物密度(du)(du)(du)分(fen)析鏡(jing)來完成。織(zhi)物密度(du)(du)(du)分(fen)析鏡(jing)的刻度(du)(du)(du)尺長度(du)(du)(du)為5cm,在分(fen)析鏡(jing)頭下(xia)面,24安(an)工(gong)藝全棉帆布(bu) 維尼綸纖(xian)維強(qiang)度(du)(du)(du)達200牛/(毫米·層(ceng)),彈(dan)性伸長比尼龍纖(xian)維小,易與(yu)橡膠粘合,耐熱性能(neng)好(hao),但濕態時強(qiang)度(du)(du)(du)要降低(di)10~25%,僅在中國(guo)、日本等少數(shu)國(guo)家應用(yong)。在編(bian)織(zhi)帶芯時可以只用(yong)一種(zhong)纖(xian)...