In distribution systems where high point vents are not installed, highvelocityflow and flow restriction techniques can be used to ensure complete filling of the system.
在分配系统中没有安装高位点的排气口，可采用高流速以及流速限制技术以确保系统的完全充填。
2
With the developing of science and technology, more and more high head dams are build and problems brought by highvelocityflow are following.
随着科学技术的进步，世界上修建的高坝日益增多，随之而来的高速水流问题也就越来越多。
3
One of the main problems of spillway tunnel with large discharge and highvelocityflow is the cavitation damage.