packing ring的用法和樣例：
例句
- A special retainer ring holds the two sealing ring faces together.
一個(gè)特殊的固定環(huán)將密封環(huán)的表面靠在一起。 - These unions also have a resilent nitrile seal ring.
裝有彈性丁晴橡膠密封環(huán)。 - Make an inventory of all ring gaskets.
開(kāi)一個(gè)所有墊圈的清單。 - Standard NIBCO iron valves are furnished with Synthetic Fibers and Graphite packing, along with Synthetic Fibre gaskets.
標準美國尼伯科鑄鐵閥門(mén)配置合成纖維和石墨填料，以及合成纖維墊圈。
