long vernier

例句：

1. 1. The engineer used a long vernier to measure the angle accurately.
   工程师用长刻度尺准确地测量了角度。
2. 2.The long vernier was used to adjust the machine's settings.
   长刻度尺被用来调整机器的设置。
3. 3.The long vernier helped the carpenter to make precise cuts on the wood.
   长刻度尺帮助木匠在木头上做出精确的切割。