1.容积=π（37.5/2）²x40=3.14x18.75²x40=3.14x351.5625x40=44156.25（立方厘米）2.容积=π（35/2）²x33=3.14x17.5²x33 =3.14x306.25x33=31733.625（立方厘米）您所要求的“换算成能装多少斤”...