Constantsan.康斯坦察constantadj.不变的；经常的n.常数；恒量Constant Speed Ball Machine恒速球机constant throw turret lathe等行程转塔刀架车床constant amplitude sinusoid等幅正弦波constant current stabilizer恒流稳压器constant selection pressure固定选择压力constant permeability scope恒导工作区constant-current response恒定电流反应constant speed drive device恒速传动装置constant weight coefficient固定权值constant-amplitude pulses等幅脉冲