This is the 8040th most frequent German word.
härtetests
"Härtetests" in English means "stress tests" or "rigorous tests."
In this sentence, 'Härtetest' means a rigorous or endurance test to ensure the reliability or durability of something.
Die Ingenieure haben ihre neuen Maschinen einem intensiven Härtetest unterzogen.
The engineers subjected their new machines to an intense endurance test.
Here, 'Härtetest' is used to define a situation analyzing the limits of capacity or resilience of a material.
Im Rahmen des Härtetests wussten wir, wie belastbar das Material ist.
During the endurance test, we learned how resilient the material is.
In this case, 'Härtetests' is used metaphorically, referring to trials or challenges that test the strength of a relationship.