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1·Ferrocene is a crystalline, diamagnetic material that is extremely stable to air, moisture.

二茂铁是一个晶的逆磁性物质，在空气中，湿气和光下是非常稳定的。

2·Ferrocene is a crystalline, diamagnetic material that is extremely stable to air, moisture and light.

二茂铁是一个晶状的逆磁性物质，在空气中，湿气和光下是非常稳定的。

3·You take a diamagnetic material in the absence of a magnetic field, and you slowly move it into a place where there's high magnetic field, what does the diamagnetic material do?

你有一块抗磁材料没有磁场，慢慢地把它移到，磁场很高的地方抗磁，材料会怎么样？

4·The needle knife body and the needle knife head are made of a paramagnetic metal material, and a layer of diamagnetic metal material coat is coated on the paramagnetic metal material.

所述针刀身和针刀头由顺磁性金属材料制成；并且，所述顺磁性金属材料之上涂覆有一层反磁性金属材料涂层。