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单词
flat torus
释义
flat torus
简明释义
扁平环面:在几何上,一个环面是一个手镯形状的旋转曲面,由一个圆绕一个和该圆共面的一个轴回转所生成。球面可以视为环面的特殊情况,也就是旋转轴是该圆的直径时。若转轴和圆不相交,圆面中间有一个洞,就像一个手镯、甜甜圈、呼啦圈,或者一个充了气的轮胎。另一个情况,也就是轴是圆的一根弦的时候,就产生一个挤扁了的球面,就像一个圆的座垫那样。英文Torus曾是拉丁文的这种形状的座垫。
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selective attack
selective attention
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selective availability
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selective backup
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selective bactericidal defect
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更新时间:2025/3/23 11:02:58