switch spring造句

例句与造句

1. The bimetallic strip held in place thus acts as a switching spring , which either opens or closes the contacts of an electric circuit , depending on the temperature and thus the bending
   此时固定的双金属条就起弹簧开关的作用，即根据温度和弯曲变形打开或者关闭回路。
2. It's difficult to find switch spring in a sentence. 用switch spring造句挺难的