Open main menu

Opengenome.net β

Tetragonal system

Revision as of 14:53, 6 February 2006 by Yslee (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

c축 방향으로 4회회전축이나 4회회반축을 갖고 별도로 4회축이 없는 정족을 통합한 정계를 가르킨다.