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1·In Egypt, so called unit fraction was in use in The Times of the pharaohs.

埃及法老时期用所谓单位分数。

2·You are selling one unit of your existence (an hour of your life) at a set price (the associated fraction of your salary) to a customer (your employer).

你在用你的价格(也就是你的薪水的几分之一)，出售的是你的存在(你生命中的一个小时)，卖给你的客户(也就是你的雇主)。

3·The fraction indicates the unit of measurement, while the time figure indicates the maximum time measurement.

该部分显示的度量单位，而当时的数字显示测量的最大时间。

4·Theoretical cooling curves, the relationship between cooling curve, fraction of solid and liberation of latent heat per unit time, and experimental results are presented.

给出了理论冷却曲线、冷却曲线、固相率及单位时间内潜热释放速度之间的关系及实验结果。