**Multi-Domain Applications**
Broadly applied due to performance:
- **Metallurgy Industry**: Monitor oxygen content in steel smelting, optimize material quality
- **Chemical Industry**: Real-time monitoring of oxygen content in the reaction system to ensure product purity and reaction efficiency
- **Environmental Protection**: Oxygen content detection of emissions gases, helping enterprises meet emission standards
- **Food & Beverage**: Control oxygen content during processing to extend product shelf life
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