Airtight structure is a very important facility in coal mines. It is of great significance to learn changes in parameters at sealed area timely and accurately for safety in production.
密闭是煤矿井下一道非常重要的设施，及时准确地掌握密闭内各参数的变化对安全生产有着重要的意义。
Qinghe oil Production Plant reconstructed the airtight gathering and transportation technology at southern metering block station in the northern oil field in 2004 and has obtained the tangible e...
清河采油厂2004年在北区油田南块接转站进行密闭集输工艺改造，取得了明显的效果。
Application of seal airtight spot welding in bus industiy is introduced in this paper. This welding technology can get good weld formation better seal airtight weld and high production.
介绍了密封胶点焊新工艺在客车制造中的应用，分析了应用该新工艺具有焊接变形少、焊缝密封性好、生产效率高等特点。
It has simple structure, good airtight performance with high vacuum degree, no vortex loss, low cost on production, and no need maintenance.
本发明特点在于结构简单，气密性好，真空度高，无涡流损耗，制作成本低廉，而且不需对其进行专门维护。
It has simple structure, good airtight performance with high vacuum degree, no vortex loss, low cost on production, and no need maintenance.
本发明特点在于结构简单，气密性好，真空度高，无涡流损耗，制作成本低廉，而且不需对其进行专门维护。
应用推荐