The function to dispel the odor is achieved by a deodorized pipeline and an outside vent channel which is connected with a special vent device .

除臭功能是在坐便器内部增加了除臭通道及外部的 排气 通道连接至专用的排气装置。

Type And Property Evaluation Of Ordinary Vent - Channel

常用 通风 管道的种类及性能评价

The vent valve comprises an air vent screw a spring and a valve ball which leans against the channel under the acting force of the spring .

所述排气阀包括一 排气螺钉、一弹簧、一钢球，阀球在弹簧作用力下抵靠 通道上。