ASDCBNC²³⁶²¹³⁺¹ 基本例句 n.美国高空与宇宙资料中心¹⁰⁰ Considering changing the subdivided driving way of stepping motor and improving characters of the system, a new kind of self-adaptive subdivided driving circuit ASDC based on AT89C51 was designed. 从改进步进电机的细分驱动方式、改善系统性能出发，设计了一种基于 AT89C51的步进电机自适应细分驱动系统。 dictall