Data Search of Major Classification
| Major Class | Parent | Descriptor | Acronym | Synonym | Chinese Descriptor | Spanish Descriptor | Reference | Definition |
| Product | Air Treatment | DeNOx | Nox Reduction | 氮氧化物脱除 | DeNOx |
| Major Class | Parent | Descriptor | Acronym | Synonym | Chinese Descriptor | Spanish Descriptor | Reference | Definition |
| Product | DeNOx | Ammonia Injection | 氨水加注 | Inyección de amoníaco | ||||
| Product | DeNox | Selective Catalytic Reduction | SCR | Reducción Catalítica Selectiva | ||||
| Product | DeNox | Selective Non Catalytic Reduction | SNCR | De reducción catalítica selectiva para no |