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Why use story points instead of units of time such as hours?

为什么要使用描述点，而不是小时之类的时间单位？

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"A lot of units from different areas, different parts of the country have to integrate,work as a team, and that's why we come here to practice because we need to be ready in case something does happen."

VOA: standard.2010.07.21

And when we talk about intensity in terms of units, we usually talk about watts, so if you change your lightbulb, usually you see the intensity in terms of watts.

当我们讨论强度的单位时，我们经常用瓦特，所以如果你更换灯泡，你通常会看到,以瓦特为单位的强度值。

麻省理工公开课 - 化学原理课程节选

That is the power of having a rationalized system of units. That is the good news.

这就是拥有合理单位的好处,这可是个好消息。

麻省理工公开课 - 固态化学导论课程节选

Shipment figures often differ from the number of units that have actually been sold.

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Radioactive iodine-131 and cesium-137 were also found in the drainage outlet of units 5 and 6.

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Those kind of units produce about 12 percent of all electricity in this country.

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