八线自动记录粘度计eight-channel automatic recording viscometer
八道数据处理器eight-channel data processor
八通道磁带记录仪eight-channel magnetic tape recorder
八通道脑电流描记仪eight-channel electroencephalograph
八线阴极射线示波器eight-channel cathode-ray oscilloscope
八道程记录纸eight-channel recording paper