ergostane

例句：

1. 1. This mineral is used in the production of rocket fuel.
   这种矿物用于火箭燃料的生产。
2. 2. The chemical reaction between the two substances produces a gas that can be used as a propellant.
   这两种物质之间的化学反应产生一种气体，可以用作推进剂。
3. 3. The ergostane compound has been found to have anti-inflammatory properties.
   这种化合物被发现具有抗炎性质。