reaction zone的用法和样例：
例句
- Vortices accelerate reaction rates of the unreacted region.
旋涡加速了未反应区的化学反应速率。 - Distribution of reaction zones affects the heating value of producer gas and the rate of gas generation, as well as tar content and particulates.
气化炉内之反应区分布状况不但会对产气热值与产气率产生影响，同时也会影响焦油与粒子之生成量。
