ferroprobe

例句：

1. 1. The scientist used a ferroprobe to detect the magnetic field of the earth.
   科学家使用铁探针对地球的磁场进行了探测。
2. 2. The engineer designed a ferroprobe to measure the strength of the material.
   工程师设计了一个铁探针来测量材料强度。
3. 3. The physicist used a ferroprobe to study the properties of metals.
   物理学家使用铁探针研究金属的性质。