That is, rather than using VFS technology to access existing external resources, it manages a special-purpose database, internal to the application, as a complete filesystem.

也就是，不是使用VFS技术去访问现有的外部资源，而是要将一个特殊用途的数据库(位于应用程序内部)当作一个完整的文件系统进行管理。

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This special purpose ioctl interface will be able to control the interrupt generation sequence and the number of interrupts to be generated through the test application.

这个具有特殊用途的ioctl接口可以控制中断生成的顺序，以及通过测试应用程序所生成的中断的数量。

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Aimed at the rebuilding require of the electric control system of the special purpose of milling machine, the application of PLC was introduced, this control system acquires good effect.

根据某厂对专用铣床的电气控制系统所提出的改造要求，采用可编程控制器进行控制，取得了很好的效果。

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