李嘉图模型的一维特征，掩盖了比较优势的非对称性。
The one-dimensional characteristics of Ricardo's model covers up the non-symmetry of comparative advantage.
分析了几种典型的对称数字水印算法，并且对对称水印加密算法和非对称水印加密算法的特点进行比较分析。
This paper is devoted to some typical asymmetric watermarks and some basic characteristics of asymmetric watermark and symmetric watermark.
此外，发现非对称换道条件对车道间的互相关系数影响比较小。
In addition, we also found that that asymmetric lane-change almost have no great influence to the cross-correlation coefficient.
此外，发现非对称换道条件对车道间的互相关系数影响比较小。
In addition, we also found that that asymmetric lane-change almost have no great influence to the cross-correlation coefficient.
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