美 [baʊ ˈkʌmpəs]
弓形圆规：一种小型的圆规，其中一条腿上带有铅笔、钢笔或尖头，两条腿通过弓形弹簧连接而不是关节。
bow compass /bəʊ/
名词 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)
弹簧圆规
弓形圆规
... 外缘线,边线bounding line 弹簧圆规,小圆规bow compass 弹簧分规,小分规bow divider ...
... 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 ...
... 浮标控制法 bouy-control method 小圆规，量规，精密小圆规 bow compass 包狄法则 Bowditch rule ...
According to the compass screwed onto the bow, Max was sailing directly for it, due north-northwest, and yet the city lights were growing fainter.