英德
有道
百度
谷歌
图片
维基
百科
双纽线 [shuāng niǔ xiàn]
lemniscate
- 只用圆规作双纽线！
Constrcut Lemniscate with Compass Only. - 通过理论分析，用双纽线拟合煤体与采空区交界处下方底板岩层内支承压力分布，分析巷道受采动影响的程度，作为巷道设计的依。
Based on the theoretical analysis, lemniscate is used to fit the distribution of sustaining pressure in floor strata under the crossway of coal body and goaf. - 应用能量法研究了对称铺层的闭合圆柱形层合壳体的表层局部分层屈曲问题；表层分层形式有三角形、椭圆和双纽线；
Energy method is applied to study the buckling problem of near surface triangular, elliptical and lemniscated delamination in a symmetric closed cylindrical laminated shell.
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