输送悬链
transportation hang chain
数字式高稳定恒流源
digital high steady current source
数字式高压瞬态记录仪
Digital high voltage transient sampler
数字式高阻检定仪
digital type high resistance calibrator
数字式光电互感器
digital opto electronic instrument transformer
数字式光学成像
digital optical televiewer
数字式光栅测长仪
digital grating length measurement device
数字式光栅测微仪
digital optical grating micrometer
数字式核磁共振频率-磁场转换器
digital NMR frequency-to-magnetic field converter