Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/eb2ec7576d59d36ebb7f1e7324988620.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 lead of helix例句_lead of helix英汉例句_lead of helix双解例句_果味酸柯林斯词典
In the form of function of functions this article derives the parametric equation of cylinder helix the lead of which is of a linear change. 用复合函数的形式，汇出导程呈线性变化的圆柱螺旋线的参考方程。