system exclusive meaning in English

系统专用

Meta commands were added to support midi files and system exclusive commands were provided for vendors to add features that were implemented by their hardware
需要增加meta命令来支持midi文件，并提供一些系统高级命令，增加厂商的特性，这些特性由他们的硬件系统实现。
Type may be an instance of either a midi short , meta or system exclusive message , so the general structure for the method is to test what type of midi message it is and build an instance of the event to be published
类型既可以是midi short ， meta又可以作为系统高级消息，所以通常这种方法结构用于测试midi消息属于何种类型，并为要发布的事件构建一个实例。