证实用亚椭圆形毛坯制得的盒形件在有效高度，口部平齐度等方面优于其它形状的毛料。

Results show that boxes drawn with para-elliptical blanks are superior to those drawn with other blanks.

youdao

证实用亚椭圆形毛坯制得的盒形件在有效高度，口部平齐度等方面优于其它形状的毛料。

Results show that boxes drawn with para-elliptical blanks are superior to those drawn with other blanks.

youdao