packing ring

• 密封环

packing ring的用法和样例：

例句

1. A special retainer ring holds the two sealing ring faces together.
   一个特殊的固定环将密封环的表面靠在一起。
2. These unions also have a resilent nitrile seal ring.
   装有弹性丁晴橡胶密封环。
3. Make an inventory of all ring gaskets.
   开一个所有垫圈的清单。
4. Standard NIBCO iron valves are furnished with Synthetic Fibers and Graphite packing, along with Synthetic Fibre gaskets.
   标准美国尼伯科铸铁阀门配置合成纤维和石墨填料，以及合成纤维垫圈。