额外操作 meaning in English

operation bidirectional

When switching from full to bulk - logged recovery , no additional action is necessary to protect your data
从完整恢复切换到大容量日志恢复时，无需执行额外操作来保护数据。
The wsdl binding definition describes the endpoint behavior for a web service , including the operations , parameters , additional operation and parameter types , and protocols that other applications must use to call the web service
Wsdl绑定定义描述web服务的终结点行为，其中包括操作、参数、额外操作和参数类型以及其他应用程序在调用web服务时必须使用的协议。