例句與造句

1. The movement, which indicates centre seconds, has a steel balance with a bimetallic temperature compensation strip that acts on the flat balance spring.
2. 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.
3. It's difficult to find flat balance in a sentence. 用flat balance造句挺難的