The proof strength can be used to evaluate the tension-compression fatigue strength of gray cast iron, and also used as the stress level of the tension-compression fatigue test.

利用引伸计拉力试验中的规定总延伸强度可以评价灰铸铁的拉压疲劳极限，也可以利用该数值作为预计的疲劳极限，用于拉压疲劳试验应力水平的选取。

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The sea wall was not proof against the strength of the waves.

防波堤挡不住海浪的力量。

《牛津词典》

Singapore regards Macau’s strength not as a competitive threat but rather as proof of concept.

新加坡不把澳门的实力当竞争威胁而把其看做是对某些思想观念的证明。

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Defenders of this President's approach to terrorism will point to his use of drones to eliminate terrorists as proof of his strength as a Commander-in-Chief taking the fight to the enemy.

CENTERFORSECURITYPOLICY: A Question Not Asked

Liquor must list alcohol content by volume and may also list proof, a measure of alcoholic strength.

NPR: Are Nutritional Labels Coming On Alcoholic Drinks

Eli Manning and Ben Roethilsberger are proof of this, out-earning their QBR score largely on the strength of signing new contracts shortly after winning Super Bowls.

FORBES: Will the Eagles' Investment in Michael Vick Lead to Super Bowl Glory or Financial Heartache?