Size check condition: Use the measure ruler based on the product drawing for check, and need note that the tolerance make by operator.

尺寸检测条件：依据图纸，使用计量卡尺，注意检测人为误差。

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This paper analyses and summarizes the problem in measure and calculation of areas in line shape ground object in land manage and suggest a kind of method of computer summary and measure ruler.

就在土地管理、国土面积量算的繁杂过程中，线状地物的面积量算问题进行了分析，提出了一种计算机汇总结合卡规量算的方法。

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"The apparent orientation is biased because we measure orientation not with a compass or with a ruler but with redshift," Marinoni says.

“因为我们测量方向并不是用指南针或者尺子而是用红移，所以呈现的方向会有畸变，”马里·诺尼说。

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So take up your ruler, go forth and measure.

BBC: The popcorn route to recovery

Other important measurement tools include the ruler, the protractor, the tape measure.

FORBES: Magazine Article