cylinder bore gauge

例句：

1. 1.The engineer used the cylinder bore gauge to measure the diameter of the piston.
   工程师使用气缸内径量规来测量活塞的直径。
2. 2. The technician was required to check the cylinder bore gauge before starting the engine.
   技术人员在启动发动机前需要检查气缸内径量规。
3. 3. The manufacturer recommends using the cylinder bore gauge to ensure proper fitment of the piston rings.
   制造商推荐使用气缸内径量规以确保活塞环的正确安装。