If this page was contained in that folder, it would create a circular reference to itself through the Multi-page portlet.
如果这个页面在同一个文件夹中，那么它就会通过多页面Portlet产生循环引用。
2
Use: For shaped single-arm grinding machine, shaped multi-arm grinding machine, straight line circular edging grinding machine, portable grinding machine.
用途：用于单臂异型机、多臂异型机、直线园边机、携带型磨边机等。
3
This paper studies the control of the circulation around a circular cylinder with multi slot blowing, using the method of Navier Stokes equation simulation.