直棱柱的表面展开图zhilengzhu de biaomian zhankaitu
如图所示.直棱柱的侧面展开图是矩形，这个矩形的长等于直棱柱的底面周长p，宽等于棱柱的高h.
- Bacolod
- Baconian Theory
- Bacon，Francis
- Bacon，Francis
- Bacon，John
- Bacon，Roger
- bacteria
- bacteriological warfare
- bacteriology
- bacteriophage
- Bactria
- Badajoz
- Badalona
- Baden
- Baden
- Baden-Baden
- Baden-Wurttemberg
- Baden—Powell of Gilwell，Robert Stephenson Smyth Baden-Powell，1st Baron
- Bader，Sir Douglass
- badger
- Bad Godesberg
- badlands
- Badlands National Park
- Badminton
- badminton