Wants the keep flat to air dry, hangs the clothes rack easily to cause the needlefabric to elongate, will distort.
要平放晾干，挂衣架容易造成针织料拉长，会变形。
2
The stress field in the composite fabric which made by needle punching during tensile test, and the difficulty of calculating the stress - strain property are analyzed from the fabric structure.
根据针刺复合织物结构，分析其在拉伸过程中的内部应力场，说明拉伸应力应变预测计算的困难。
3
The sewing machine needle is a key unit which directly assembles fabric. Whether or not it is chosen or used reasonably affects the sewing quality of the fabric.