spirality helicity

例句：

1. 1. The scientist discovered a new type of gas that could be used in space exploration.
   科学家发现了一种可用于太空探索的新气体。
2. 2. The gas ignited the fire, causing it to spread rapidly.
   这种气体引发了火灾，火势迅速蔓延。
3. 3. The gas was released into the atmosphere, affecting the climate.
   这种气体被释放到大气中，影响了气候。