常見(jiàn)例句雙語(yǔ)例句By means of mathematical analysis, the paper discusses how to determine the seam gradient of back trouser crotch according to types of figure.本文結(jié)合人體體型，從適身型角度，利用數(shù)學(xué)方法分析探求后襠縫斜度的確定問(wèn)題。 返回 back crotch seam