其中，光学法是基于二氧化碳与空气的折射率有差别，利用彩色纹影法和阴影法原理来判断泄漏；
The optic method, which based on the difference of the refractive indexes between carbon dioxide and air, estimate leaks according to principles of Schlieren and Shadow-graph.
本发明使彩色提花织物不仅具有织锦特殊的影光层次和丰富色彩，更具有刺绣产品的质纹感。
The invention ensures that the colorful jacquard fabric has special shadow light gradation and rich color of the brocade and has the texture of the embroidery product.
本发明使彩色提花织物不仅具有织锦特殊的影光层次和丰富色彩，更具有刺绣产品的质纹感。
The invention ensures that the colorful jacquard fabric has special shadow light gradation and rich color of the brocade and has the texture of the embroidery product.
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