短語詞組短語optical duobinary signal 光雙二進制信號optical fiber signal 光纖信號optical intrinsic signal imaging 信號光學(xué)成像;內(nèi)源信號光學(xué)成像;光學(xué)信號成像optical pumping signal 光抽運optical overhead signal 光開銷信號optical sensing signal detection 光傳感信號檢測optical transient signal 瞬態(tài)光信號abnormal optical pumping signal 異常光抽運信號optical clock signal 光時鍾信號 返回 optical signal