环形阀,环状阀;
Ball check valve A too narrow sealing surface of the lamella combined with the improper material quality of the lamella is the main cause affecting the annular scars on the safety value.
阀瓣密封面过窄与阀瓣材质的选择不当,是影响安全阀环形伤痕的主要原因。
Applying air pressure to the annular space between the sleeve and the body actuates the valve.
在套管与阀体之间的环形空间内施加气压来驱动阀门.
纳米英语 · 双语娱乐资讯