短语词组短語toughness and tenacity test 強靭性試騐impact toughness test 沖擊靭性試騐;沖擊靭度試騐Ductile fracture toughness test 延性斷裂靭度試騐Fracture Toughness Test 斷裂靭性試騐;斷裂靭度試騐Plane -strain fracture toughness test 平麪應變斷裂靭度試騐 返回 toughness test