variation of sign

At the same time, it pays great attention to the variation of contemporary language, Based on the profound split between sign and referent as well as between the signifier and the signified, Auster expresses his confusion of human subjectivity disappearance and anxiety of broken world.

同时，它对当代语言的变异表现出极大的关注，通过表现语言能指与所指的断裂表达了对于主体消失零散化的迷茫，以及对这个破碎的世界和自我的焦虑。

Based on change of cotton-growing regions during 1990-2004 in China, this study calculates Aggregated Advantage Indices ( AAI) of major provinces and regions, tests relationship between variation of cotton benefit per hectare and planting area using non-parameter sign test.

文章分析了1990年-2004年我国棉花生产区域布局变化，测度了棉花主产省区的综合比较优势指数（AAI），用非参数统计方法检验了单位面积棉花种植效益变动与播种面积变动的关系。