An oblique pedestrian street let the city gate to be an opposite scenery , the image of history become the cultural subject of modern life.
一条斜向步行街，将古城楼当成了对景，历史的意象成了现代生活的文化主题。
The bottom of the disc is made of knife-shaped gate with a cut off function of the medium. When gate is closed, oblique plane of gate valve encounters wedge block of gate to achieve sealing effect.
闸板底部做成刀形斜面具有切断介质功能，而且闸板关闭时通过阀体上的锲块紧靠闸板斜切面使得闸板紧紧贴靠阀座密封面，从而起到了密封效果。
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