overcoil 的定义
Horology.
- a fixed end of a spiral hairspring, consisting of an upwardly and inwardly bent continuation of the outermost coil of the spring: used to offset the asymmetry of the common spiral spring when tight, which impairs isochronism.
- a hairspring having such a fixed end.
更多overcoil例句
- Used in chronometers and other fine time pieces where the spring is an overcoil.