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parallel ruler

noun

  1. engineering a drawing instrument in which two parallel edges are connected so that they remain parallel, although the distance between them can be varied


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Example Sentences

One brass rolling parallel ruler, two feet long; must not weigh less than five pounds.

The lieutenant followed him, and stood watching as the master again manipulated his parallel ruler and dividers.

By this process the parallel ruler could be moved all over the chart without losing the course from one point to the other.

Mr. Spokesly laid the parallel ruler against the line and produced it clear across the chart.

Spreading it on the table he ran his parallel ruler over it.

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parallel resonanceparallel rulers