1)master-slave circuit schematic,主从线路图2)master-slave circuit,主从线路3)Road Map to Democracy,民主路线图4)main road map,主干道路线图5)principal and subordinate directrix,主从准线6)basic circuit,基本线路[图]，原理电路图，主结线;原理图
用法例句
Based on the shaping character of turning process, a model of principal and subordinate directrix was built up to suit for the simulate image in display, and a dynamic gridding of data structure was created to reduce data redundance efficiently an.
