backing copy

基本解释

Since the slave KDC is meant for backing up the master KDC in an emergency, the slave KDC might need to use the read-write copy.
因为从 KDC 用于在紧急情况下替代主 KDC，所以从 KDC 可能需要使用可读写拷贝。
For the new CopyOnWriteArrayList and CopyOnWriteArraySet classes, all mutable operations make a copy of the backing array first, make the change to the copy, and then replace the copy.
对于新的 CopyOnWriteArrayList 和 CopyOnWriteArraySet 类，所有可变的（mutable）操作都首先取得后台数组的副本，对副本进行更改，然后替换副本。
Cc, the carbon copy cat, was created by a team at Texas A&M University with the backing of an American businessman, John Sperling, whose company plans to offer cloning to cat and dog owners.
该小组得到了一位名为约翰·斯珀林的美国商人的资助。斯珀林的公司正计划向养猫、养狗的人们提供克隆宠物的服务。