Each color in the palette is identified by its index number, or value, which corresponds to its position in the table.

调色板中的每种颜色都由其索引号或值来标识，它们与其在表中的位置相对应。

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Software, a desktop alarm clock has all the basic functions should also provide a large number of customization options, you can put this little thing on the table in any position.

软件具备了一个桌面闹钟应有的所有基本功能，还提供大量自定义选项，你可以把这个小东西放在桌面的任何位置。

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Take traveling from point A to point B, so a robot can deliver a glass from the kitchen to the dining table: Once it sets out, the robot can try to figure out its position by counting the number of times its wheels have rotated.

WSJ: The Surprising Benefits of Robot Cleaners