单词	伺服频道
释义	同伺服频道--补助频道
随便看	photoelectric scanner，pes photoelectric scanning photoelectric scanning--pes photoelectric scanning，pes photoelectric sclerometer photoelectric seismometer photoelectric selector photoelectric sender photoelectric sensitivity photoelectric sensitivity curve photoelectric sensor photo-electric sextant photoelectric sextant photoelectric sorter photoelectric sorting machine photoelectric sorting machine-- photoelectric grader photoelectric sorting machine， photoelectric grader photoelectric spectrometer photoelectric spectro photometer photoelectric spectrophotometer photoelectric spectrophotometry photoelectric--surface photo electric switch photoelectric switch photoelectric tachometer