machine components
preferred label: اجزای ماشین @fa
type: Concept
narrower: exhaust system

silencer
preferred label: صداگیر @fa
type: Concept
related: exhaust system

manifold
preferred label: چندبرابر @fa
type: Concept
related: exhaust system

exhaust system
type: Concept
scope note: mufflers
alternative label: mufflers
preferred label: سامانه اگزوز @fa
related: manifold
related: silencer
related: engine
broader: machine components

engine
preferred label: موتور @fa
type: Concept
related: exhaust system