Canal gate

渠门───canal gate

The city gate nature no longer places, but still has a Xu Ning's way of approach and Xu Ning men's bridge horizontal Gen wear battlement but lead of ship canal on.───城门自然早已不存，但还有一条徐凝门路和徐凝门桥横亘在穿城而过的运河之上。

In this article, ingeniously utilized TAB gate and two times location system and overflow canal, and designed injection mold. Guaranteed well the mold's quality.───本文巧妙地运用了护耳式浇口、二次定位系统及溢流槽来设计模具，更好地保证了塑件质量。

has realistic significance to research on using working gate with submerged discharge to measure water in canal for slab irrigation district.───对于平原灌区，研究利用以淹没出流为主的工作闸门进行渠道量水具有现实意义。