Research on the variation feature of complicated seepage flow field.
复杂渗流场转异特征研究。
The attribute adjacent graphics and the interrelated matrix for edge and face of variation feature were given. The organic relation between component faces of variation feature was expressed.
给出了变异特征属性邻接图和边面关联矩阵，表达了变异特征组成面之间的有机联系。
A feature of these is the Filipino variation on the Mexican pinata: a bamboo frame from which dangle packages of sweets, fruit, and toys on strings.
其中一个特色是菲律宾版的墨西哥皮纳塔：一个竹制的架子，上面用绳子挂着一包包的糖、水果和玩具。
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