Corti's rods

例句：

1. 1. The engineer used a Cort's rod to measure the length of the beam.
   工程师用科蒂氏杆来测量梁的长度。
2. 2.The scientist found that the Cort's rod was not suitable for measuring the temperature in the room.
   科学家发现科蒂氏杆不适合用来测量房间的温度。
3. 3. The carpenter used a Cort's rod to mark the corners of the table.
   木匠用科蒂氏杆来标记桌子的角落。