Conclusion The way of trans sinusoidal, trans vascular and trans vascular plexal growing route is the key mechanism of APS formation in HCC.

结论经血管、经肝窦、经肝血管丛的途径是肝细胞癌APS形成的主要机制。

The method of calculating microstepping currents for variable reluctance stepping motor with equal microstep angle was described when motor torque characteristics were sinusoidal shapes.

摘要针对反应式步进电动机的转矩，绍了等步距角细分电流的计算方法。