在人们图方便用身体部位测量物体尺寸的过程中产生的度量单位，有一些现在已不再使用了。

There are obsolete units of measure that came about due to the convenience of measuring off things against parts of the body.

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在业务类图中，属性类型通常与单位相符，这对于图的可能读者是有意义的(例如，分钟，美元，等等)。

In business class diagrams, the attribute types usually correspond to units that make sense to the likely readers of the diagram (i.e., minutes, dollars, etc.).

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图4为每个磁盘的读写提供磁盘汇总信息，单位是千字节每秒。

Figure 4 provides a disk summary for each disk in kilobytes per second for reads and writes.

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Let's draw it in degrees Kelvin, instead of in degrees Celsius.

来重画一下这幅图，现在温度的单位是开尔文。

麻省理工公开课 - 热力学与动力学课程节选