体积算中规中矩:
[attachment=38967] [attachment=38968]
参数:
[attachment=38969] [attachment=38970]
斜面:
[attachment=38971] [attachment=38972]
换角度:
[attachment=38973] [attachment=38974]
侧面:
[attachment=38975] [attachment=38976]
[attachment=38977] [attachment=38978]