The design theory, function, application and secondary use is mentioned simply, specially, its application in the design of channelcrosssection is mentioned.
本文简述了数字化断面的设计原理、功能、应用及二次使用，特别是其在水利上河道断面设计中的应用。
2
This paper presents the design of a new degree of freedom-channel with variable cross-section design.
本文提出了一种新的设计自由度——变截面通道设计方法。
3
Compared with other types of open channelcross-section, the cubic parabola shape open channel is one of the open channels which convey water more efficiently.