Minor disruptions of human circadian clocks can lead to jet lag and fatigue, while chronic malfunctions have been associated with some mental illnesses and cancers.
人生物钟轻微扰乱会导致哈欠和疲劳，但慢性功能障碍则与一些精神疾病和癌症相关。
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The results show that abrasive water jet polishing surface has a good effect and can improve the surface hardness, surface fatigue strength. The lower the surface hardness, more obvious the effect.