speedometer shaft core

例句：

1. 1. The engineer measured the length of the speedometer shaft core with a caliper.
   工程师用卡尺测量了速度表轴芯的长度。
2. 2.The technician replaced the worn-out speedometer shaft core with a new one.
   技术人员用一个新的替换了磨损的速度表轴芯。
3. 3.The car's speedometer shaft core was damaged during the accident.
   汽车在事故中损坏了速度表轴芯。