a four-sided polygon 同义词：quadrilateral, quadrangle,
例句与用法
1.
" old - fashioned , but we like it that way , " bullone said . " i don ' t like the modern trend in architecture . too mechanical . give me an old - fashioned tetragon on a central pivot every time . “样式是老，但我们喜欢这样， ”布伦说， “我不喜欢建筑上的现代时尚。太呆板了。每次都给我看一个建在中轴上的四角大楼吧。 ”
2.
Some beneficial results of the csnw ' s behaviors are gotten . main research contents as follows : ( 1 ) the four destruction models and respective stability analysis methods are discribed in this paper , whose working mechnism and calculating methods are given . in addition , some defects of every method are also discussed ; ( 2 ) on the basis of traditional active soil pressure method and expirical siol pressure method , the calculating model of the laternal earth pressure which is a tetragon with the largest value in the center side is addressed 主要工作如下： ( 1 )本文给出了复合土钉墙的稳定性分析方法，该方法介绍了复合土钉墙的四种破坏类型，分析了每种破坏类型的受力机理，并给出了相应的计算方法和计算方法中的一些不足； ( 2 )在传统的主动土压力和经验土压力的基础上，建立了土钉墙中间大、上下小的四边形状分布的侧向土压力的计算模式。
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