按确定的重量百分比把磁粉分散在不易挥发的蓖麻油里，使用西德生产的1.033型铁磁仪测量其磁性能。
Magnetic powder was dispersed in castor oil according to the definite weight percentage, and the magnetic properties were measured with Germany 1.033 Ferrograph.
按确定的重量百分比把磁粉分散在不易挥发的蓖麻油里，使用西德生产的1.033型铁磁仪测量其磁性能。
Magnetic powder was dispersed in castor oil according to the definite weight percentage, and the magnetic properties were measured with Germany 1.033 Ferrograph.
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