Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/0aa99cd2a7c98137131fb81b69011a74.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/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_流逝汉英词典
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。