急问：nation flag是国旗,那么state flag是什么?区别在哪里?On 1 January 2006,the new State Flag Act enters into force in Estonia.The most important change introduced by the new law is that all individuals have the right to use the state flag as a national flag whenever they feel it fit to do so,but the use of the flag must be appropriate and respectful of time-honoured traditions.State flags are permanently flown over state institutions,local and city governments,and al

急问：nation flag是国旗,那么state flag是什么?区别在哪里?
On 1 January 2006,the new State Flag Act enters into force in Estonia.The most important change introduced by the new law is that all individuals have the right to use the state flag as a national flag whenever they feel it fit to do so,but the use of the flag must be appropriate and respectful of time-honoured traditions.State flags are permanently flown over state institutions,local and city governments,and also at border crossing points.
问题在这段话里,爱沙尼亚并不是联邦制国家啊.