The result shows that even without strength degeneration, the reliability and failure rate of components decrease with time.
研究表明,即使强度不退化,零件的可靠度和失效率也会随时间逐渐降低;
Laundry bags, stairs, chairs and even the bare floor can help build strength and endurance and burn fat. Here are some back-to-the-basics tips for creating your own workout without breaking the bank.
洗衣袋、楼梯、椅子甚至光地板都可以帮助你改善体力、提高耐力和燃烧脂肪。
Ultra steel is characterized by its higher cleanness and ultra-fine grain, thus it has higher strength, toughness and longer life even without addition of more alloying elements.
超级钢的主要特征是高洁净度和超细晶粒组织,在不增加任何合金元素的情况下,其强度、韧性和使用寿命提高一倍。
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