| 单词 |
beam compass |
| 释义 |
beam compass(also beam compasses) nounA drawing compass consisting of a horizontal rod or beam connected by sliding sockets to two vertical legs, used for drawing large circles.The radius of circle or arc you can make with this beam compass set is limited only by the ledge you have at hand....- The fine adjustment mechanism on a beam compass makes distance transfers quicker and more precise than with a ruler and pencil alone.
- The beam compass is preferred due to its greater rigidity.
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