simple bud单芽simpleadj.简单的；朴素的；单纯的；笨的simple harmonic quantity简谐量simple factor experiment单因子试验simplex search algorithm单纯形搜索算法simple money circulation简单货币流通simple capital structure简单资本结构simple pseudo-manifold简单伪流形simple common expression[计] 简单公用表达式simple fan-in argument简单扇入变元simplex printing machine单面印花机simple substance silicon单质硅