求翻译：一般来说，印花图案的单薄面料因工艺简单而价格便宜；而花纹等图案属于机织上去的，则较为厚实，也较高档。 选购时仔细观察面料的图案是属于哪种情况，由不同经纬线织出的图案具有立体感，不像印花面料那样平滑。 再有，由纯棉、纯毛精织的面料较普通人造丝的面料档次高。是什么意思？

In General, the printing technology of thin fabric as a result of the pattern is simple and cheap and tread patterns are woven, is more thick, is higher. Choose carefully observe the fabric pattern which is the case, by the different transit line weave the pattern has the effect of, not as smooth as the printed fabric. Again, from cotton, wool fine woven fabric than the ordinary fabric of rayon grade higher.