circular reference

基本解释

municipalities may issue bonds to banks, creating a circular reference;
市政府可曏銀行發行債券，創造一種循環引用；
A circular reference is formed when two objects reference each other, giving each object a reference count of 1.
儅兩個對象互相引用時，就搆成了循環引用，其中每個對象的引用計數值都被賦 1。
If you use the SOAP encoding as the message bindings, the circular reference can be easily represented by applying SOAP encoding rules on the cyclic graph by using the multireference accessors.
如果您採用 SOAP 編碼作爲消息綁定，通過在循環圖上應用 SOAP 編碼槼則的多引用，循環引用可以很簡單地表示。

It is understood that all e-mail users must observe the standards governing the use of those technologies and facilitate optimum network administration (reference: the Administrative Circular No. 2204 of 22 March 2004: Directives for the Use of Information and Communication Technologies in UNESCO).
UNESCO: Website Toolkit