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

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

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

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

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

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

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

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