Siphonage-pipeline is the hardcore structure of toilet, whose inner flow has direct influence on toilet s working performance and is a considered problem by the designers.

• 虹吸管道是座便器实现功能的核心结构,其内部流动情况一直是设计人员十分关注的问题,因为管道内部流动的优劣直接影响到座便器的工作性能。