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1.This magnetic testing machine can detect the presence of iron in the soil.
这台磁性检测机器可以检测土壤中是否有铁。
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2.The magnetic testing equipment is used to measure the strength of magnetic fields.
磁性检测设备用于测量磁场的强度。
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3. The magnetic testing results showed that the material was indeed magnetic.
磁性检测结果显示，这种材料确实是磁性的。