Warning: file_put_contents(): Only 0 of 7586 bytes written, possibly out of free disk space in /home/www/wwwroot/ndsq.cn/index.php on line 55 back crotch seam是什么意思，back crotch seam的翻译，back crotch seam音标、读音、用法和例句_开心英文字典_柠咚词
By means of mathematical analysis, the paper discusses how to determine the seam gradient of back trouser crotch according to types of figure. 本文结合人体体型，从适身型角度，利用数学方法分析探求后裆缝斜度的确定问题。