An overall chromium coating improves the corrosion resistance of the generally used through-hardening rolling bearing steel.

一个总铬涂层提高了耐腐蚀性能的普遍使用，通过硬化滚动轴承钢。

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If a low degree of hardness is satisfactory, through-hardening is probably the most desirable heat treatment process to be used because of its inexpensiveness.

要是对强度的要求较低，群体淬火有可能是最适当的热处理方法，由于它的花费不高。

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Selenium works synergistically with vitamin E to boost antioxidant power and prevent or slow signs of aging and hardening of tissues through oxidation.

硒和维生素E相互协作，提高抗氧化能力防止和减缓老年化，通过氧化作用防止和减缓身体组织老化变硬。

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Samsung KNOX is an end-to-end secure Android solution that provides security hardening from the hardware through to the application layer.

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