... 弹簧圆规或分规 bow instrument 弹簧圆规,小圆规 bow compass 弹簧圆规,弹簧分规 spring bow instrument ...
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giant bow compass 大型测径规
spring-bow compass 弹簧小圆规
spring bow compass 弹簧圆规
bow compass compasses dividers 圆规
compass bow 小圆规
bow w compass 弹簧圆规
N a compass for drawing, in which the legs are joined by a flexible metal bow-shaped spring rather than a hinge, the angle being adjusted by a screw 弹簧圆规 (Also called bow-spring compass)
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