The fragment cache supports two primary types of cache instances: object cache instances and servlet cache instances.

片段缓存支持两种主要的缓存实例：对象缓存实例和Servlet缓存实例。

youdao

The primary purpose of a cache is to reduce service time and increase throughput by reusing the results of a previous computation.

cache的主要用途是重用前一次处理得出的结果以减少服务时间和增加吞吐量。

youdao

If the dynamic service is the Primary Map Resource, the cached service will be treated as a dynamic service, thus sacrificing the performance benefit of the cache.

如果那个那个动态的服务即使那个首要地图资源，那么缓存服务就被当做动态服务来对待，因此，牺牲了缓存的性能优势。

youdao

Their primary defense was to cache as much content as they could as static pages.

FORBES: DDoS Defense: Preventing business disruption