reference locality meaning in English

参考地区

While some believe that the job of the garbage collector is simply to reclaim unreachable memory , others believe that the garbage collector should also attempt to improve the reference locality of the user program
虽然一些人认为垃圾收集器的工作只是收回不可到达的内存，但是其他人认为垃圾收集器还应该尽量改进用户程序的引用区域性。
The file system this thesis bring utilizes some characteristics of web proxy , such as the fact that cached web pages do not change in size once cached and access permission do not change , and the reference locality
本文提出的文件系统利用了webproxy负载的一些特点，例如webpages一旦缓存大小就不会发生变化，存取权限也不会发生变化， webpages访问的邻接性等。