gaseous materials
preferred label: مواد گازی @fa
type: Concept
narrower: ammonia synthesis gas

fertilizer technology
preferred label: فناوری کود شیمیایی @fa
type: Concept
related: ammonia synthesis gas

ammonia synthesis gas
related: ammonia
related: fertilizer technology
broader: gaseous materials
preferred label: گاز ترکیبی آمونیاکی @fa
type: Concept

ammonia
preferred label: آمونیاک @fa
type: Concept
related: ammonia synthesis gas