强度规律 meaning in English

law of force

Experimental study on the shear strength of luojiashan clay
珞珈山粘土强度规律的试验研究
2 . through the hydraulic puncturing experiment under different material and different opening size , summarizing the rule of stress and strain and the rule of intensity about the geomembrane with damnification
2 、通过对几种不同土工膜在不同孔径下的液压胀破试验，总结出土工膜损伤后的应力应变规律和强度规律。