在这个实例中，高速缓存系统是自清除种类的。

In this instance, the cache system is of the self-pruning variety.

youdao

在正常情况下，版本编号系统，可免除使用了过时的缓存，但它仍然是明智的清除它更新时下载了。

Under normal circumstances, the version numbering system will prevent an outdated cache from being used, but it is still wise to clear it when updates were downloaded.

youdao

在正常情况下，版本编号系统，可免除使用了过时的缓存，但它仍然是明智的清除它更新时下载了。

Under normal circumstances, the version numbering system will prevent an outdated cache from being used, but it is still wise to clear it when updates were downloaded.

youdao