desulfurization in the gaseous state

例句：

1. 1. The process of desulfurization is crucial for the environmental protection of coal-fired power plants.
   脱硫过程对于燃煤电厂的环境保护至关重要。
2. 2. The company has implemented a new desulfurization technology to reduce emissions.
   该公司采用了一种新的脱硫技术以减少排放。
3. 3. The desulfurization efficiency of the equipment is an important indicator for its performance evaluation.
   设备的脱硫效率是性能评估的重要指标。