helixseal

例句：

1. 1. The helixseal is designed to prevent leaks in gaskets.
   这个螺旋密封圈设计用来防止垫片的泄漏。
2. 2. The helixseal was the key to solving the problem.
   这个螺旋密封是解决问题的关键。
3. 3. The helixseal works well in high-pressure applications.
   这种螺旋密封在高压应用中表现良好。