flat balance spring造句
例句與造句
- The movement, which indicates centre seconds, has a steel balance with a bimetallic temperature compensation strip that acts on the flat balance spring.
- Until around 1796, Earnshaw made watches with flat balance springs only, but post 1800, practically every marine chronometer, including those by Earnshaw, had a helical spring with terminal overcoils.
- It's difficult to find flat balance spring in a sentence. 用flat balance spring造句挺難的