由一个系统的经纱和表、里两个系统的纬纱或者由一个系统的纬纱和表、里两个系统的经纱相交织，使两个系统的纱线在织物中重叠配置的织物组织。
介绍用“分组法”进行纬二重组织CAD的原理和方法。
The principles and methods of weft backed weave CAD with weft and warp grouping are introduced.
前言： 介绍了用经纬纱“分组”进行经二重组织CAD设计的原理和方法。
The principles and methods of warp backed weave CAD with weft and warp grouping are introduced.
由纬二重组织的构成条件导出判别表、里组织是否合适的判别条件，导出纬二重组织CAD用数学模型。
The forming conditions of the weave can be used to distinguish if the surface or inner weave is fitted, and the mathematical model of CAD is obtained.
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