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、经肝、经肝血丛的途径是肝细胞癌APS形成的主要制。

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的正弦转矩特性，介绍了等步距角细分流的计算方法。