深夜，哈姆雷特，荷瑞修和一名守卫三人来到城墙顶，那里非常寒冷、阴暗，就在他们到达后不久，这个身穿盔甲的鬼魂突然从黑暗之中出现。
Late at night Hamlet, Horatio and one of the guards went to the top of the walls. It was very cold and dark there.
分析了标准和齿顶修形渐开线齿轮的轮齿本体温度和瞬时接触温度及相关因素对它们的影响。
Factors influencing the tooth bulk temperature and the surface transient contact temperature of involute gears with standard and modified tooth profiles are investigated.
修汽车前，你得用千斤顶把汽车抬起来。
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