化学钝化：将制件放在含有氧化剂的溶液中处理，使表面形成一层很薄的钝态保护膜的过程。
Chemical passivation: will contain antioxidant parts in solution in processing, make the surface to form a thin film of the state of the process. Blunt.
同时，晶界沉淀物的端部由尖锐变得圆钝，晶界临近区域中的合金元素贫化，使材料的应力腐蚀抗力提高。
Meanwhile, the tip of precipitates along grain boundary becomes obtuse, the alloying elements are depleted in the region near the grain boundary and the stress corrosion resistance is bettered.
野花的香气奇异而清新，强烈地刺激着你早已钝了的嗅觉，竟使你觉得平日里精心培育的盆花是那么的寡然无味。
The aroma of exotic flowers and fresh, a strong stimulus to the sense of smell you already blunt, actually makes you feel normal in carefully cultivated potted are so few natural odorless.
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