digital relay
数字式继电器
数字式保护
数字中继
数字继电器
数字式保护装置
继电保护设备
微机保护
智能电器监控单元
digital time series analysis
Real time digital filter
summit time low tide time and flat time of electric usage
Digital Archived Digital Publish
Digital Radiography Digital Radiograph
actual time over standard time
corrected retention time corrected retention time
Mining Action of Non-Equipoise Time After Time
peace time changing war time
Real time PCR real time polymerase chain reaction