hat
1) Konpare ak wonn nan kare &amp; rektang fason fòme, fason sa a se pi bon pou fòm nan nan kwen an nan koup transvèsal, comparativement, semi-dyamèt ki arc ak anndan se piti, ak ra bouch se plat, pespektiv se regilye.
eng
1) Compare with round into square&amp;rectangle forming way,this way is better for the shape at the edge of cross section,comparatively, semi-diameter of inner arc is Small,and the brim is flat,outlook is regular.