digital micrometer

例句：

1. 1.The engineer used a digital micrometer to measure the length of the pipe.
   工程师使用数字千分尺测量管道的长度。
2. 2.The doctor used a digital micrometer to take an X-ray of the patient's chest.
   医生使用数字千分尺给病人的胸部拍X光片。
3. 3.The technician used a digital micrometer to check the accuracy of the measurements made by the machine.
   技术员使用数字千分尺检查机器测量的准确性。