[仪]?外端曲线
... 椭圆齿轮流量计 oval gear flowmeter 外端曲线 overcoil 弯度计 deflectometer ...
?挑框游丝
挑框游丝 breguet hair ring; breguet hair spring; breguet hairspring; breguet spring; overcoil 未定长游丝 unvibrated hairspring ..
游丝镊子
蓄冷盘管
摆轮双层游丝
Other details: A balance spring with Breguet overcoil, the mobile stud holder.
FORBES: Surprise! The Latest Watch From MB&F Looks (Almost) Normal
overcoil:
over- +? coil
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。