small inside micrometer calliper

例句：

1. 1. The engineer used a micrometer to measure the thickness of the wall.
   工程师使用微米测量墙壁的厚度。
2. 2.The scientist conducted experiments using a micrometerto study the properties of matter.
   科学家使用微米进行实验，研究物质的性质。
3. 3.The doctor measured the patient's bloodpressure with a micrometer.
   医生用微米测量患者的血压。