copy-on-write meaning in English

临写复制
写时复制
写时拷贝

This process is called a copy - on - write operation
此过程称为“写入时复制操作”
The following figure illustrates a copy - on - write operation
下图说明了写入时复制操作。
The following figure illustrates such a copy - on - write operation
下图说明了此类写入时复制操作。
In a restore operation , a file that is used during the undo phase to hold a " copy - on - write " pre - image of pages that are to be modified
例如，数据挖掘模型可以指定进程的输入、输出、算法及其他属性，并保存定型活动期间收集的信息，例如，决策树。
The form of file that is used by a database snapshot to store its copy - on - write data depends on whether the snapshot is created by a user or used internally
数据库快照存储其“写入时复制”数据时所用的文件格式取决于快照是由用户创建，还是在内部使用：

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