Magnetic pattern printing method 发明名称
magnetic powder pattern 磁粉图案 ; 磁粉图样
The sensor successfully detected the weak but regular magnetic pattern of the heartbeat.
传感器成功探测到心跳所伴随的微弱而规则的磁场变化。
Based on geological, gravity and magnetic, seismic, logging, physical properties of rocks and testing data, the spatial variation pattern of density in Dongying sag is established.
本文以地质、重磁、地震、测井、岩石物性及分析测试资料为基础，首次建立了东营凹陷密度的空间变化模式。
Nowadays there are many methods to observe the magnetic domain structure, including powder-pattern method, magneto-optical effect method and electron holography method, etc.
目前，磁畴观测的方法已有很多种，如粉纹图法、磁光效应法、电子全息法等。
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