Introducing the properties of goggle type boardPlug valve, analyzing the characteristics of the valve, proposing the methods of improving sealing structure.
介绍了眼镜式插板阀的性能，分析了该阀门的密封特点，提出了改进密封结构的方法。
2
When you plug in keywords to a job board or search engine, they usually search the text of the postings.
当你在求职信息台或搜索引擎上输入关键词时，他们经常都会用已公布的原词搜索。
3
Make sure the draining board, sink and plug hole are regularly disinfected.