It also gave us the ability to cook food, forge metal tools, form pottery, harden bricks and drive power plants.

我们可以通过它煮东西，铸金属工具，制作陶瓷，烧砖和驱动电厂。

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The chemical composition and structure of the steels are carefully considered to produce good harden ability, machine ability and grind ability as well as toughness, wear and heat resistance.

的化学组成和结构钢认真考虑产生良好的硬化能力，机械能力和磨能力以及韧性，耐磨性和耐热性。

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The basic concept of injection molding revolves around the ability of a thermoplastic material to be softened by heat and to Harden when cooled.

注射成型的基本概念是使热塑性材料在受热时熔融，冷却时硬化。

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In this connection, high priority must be given to improving the United States' ability to attack and destroy deeply buried assets -- one approach taken by the North Koreans to conceal and harden some of their nuclear weapons-related manufacturing sites.

CENTERFORSECURITYPOLICY: Center For Security Policy