process colour printing

Research on the protection planning of history culture famous city of Sanyuan;

三原历史文化名城保护规划初探

However,the development of Daishan has a long way to go,so it is important to insist on three principles(integrate principle,assist principle,subject-rization principle).

但岱山的发展任重道远,坚持三原则(整合原则、辅助原则、主题化原则),是十分重要的。