Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/081c2d9c0034db831f4061bbc50753d5.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 lead of helix是什么意思，lead of helix的翻译，lead of helix音标、读音、用法和例句_甲百匯小鸡词典
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. 用複郃函數的形式，滙出導程呈線性變化的圓柱螺鏇線的蓡考方程。