Warning: file_put_contents(): Only 0 of 6122 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 spiralin例句_spiralin英汉例句_spiralin双解例句_沉淀汉英词典
Orthogonal design was used for combination with single factor for analyzingthe effect of various factors of drawing process on the formation of raised spiralin a refled tube. 采用正交试验与单因素试验相结合的方法分析了拔制工艺因素对内螺旋管凸筋成形的影响规律。