bow compass
柯林斯詞典
1. 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 彈簧圓槼 (Also called bow-spring compass)
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1. 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 彈簧圓槼 (Also called bow-spring compass)