vernier depth gauge

例句：

1. 1.The engineer used a vernier depth gauge to measure the thickness of the material.
   工程师使用一个分度尺来测量材料的厚度。
2. 2.The doctor measured the patient's blood pressure with a vernier depth gauge.
   医生用一个分度尺来测量病人的血压。
3. 3. The technician used a vernier depth gauge to ensure that the screws were tightened correctly.
   技术员使用一个分度尺来确保螺丝被正确拧紧。