ترک
type: Concept
broader: نقص
preferred label: crack @en

نقص بلور
type: Concept
broader: نقص
preferred label: crystal defect @en

تغییر رنگ
type: Concept
broader: نقص
preferred label: discoloration @en

نشت (مایع)
type: Concept
broader: نقص
preferred label: leakage (fluid) @en

نقص
type: Concept
alternative label: موترک
narrower: تغییر رنگ
narrower: نشت (مایع)
narrower: نقص بلور
narrower: ترک
preferred label: defect @en
related: آخال
related: پوسته‌شدگی
related: آزمایش مواد

آخال
type: Concept
preferred label: inclusion @en
related: نقص

پوسته‌شدگی
type: Concept
preferred label: spalling @en
related: نقص

آزمایش مواد
type: Concept
preferred label: materials testing @en
related: نقص