When the external magnetic field direction are vertical to the crude flow direction, crude viscosity is decreasing and as temperature increases the vis...
当外磁场方向与原油流动方向平行时，原油的粘度是增高的。
When the external magnetic field direction are vertical to the crude flow direction, crude viscosity is decreasing and as temperature increases the vis...
当外磁场方向与原油流动方向平行时，原油的粘度是增高的。
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