The aerator only made of three major parts of pottery aerator aerate screw and cap is simple in structure and of easy assembly. there is a very small sealedarea.
结构简单、组装方便。整个曝气器仅由陶瓷曝气头、通气螺杆、螺帽三个主要部分组成，密封部位面积极小。
2
The aerator, only made of three major parts of pottery aerator, aerate screw and cap is simple in structure and of easy assembly. There is a very small sealedarea.
整个曝气器仅由陶瓷曝气头、通气螺杆、螺帽三个主要部分组成，密封部位面积极小。
3
Airtight structure is a very important facility in coal mines. It is of great significance to learn changes in parameters at sealedarea timely and accurately for safety in production.