powdered reaction

例句：

1. 1. The chemical reaction wasso fast that it could be described asa powdered reaction.
   化学反应非常迅速，可以描述为粉末反应。
2. 2. Duringthe experiment, we observeda powdered reaction between thetwo chemicals.
   在实验中，我们观察到两种化学物质之间发生了粉末反应。
3. 3. Thepowdered reaction is responsible for the rapiddecomposition of the substance.
   粉末反应是物质快速分解的原因。