DDF缩写的意思

C/E TDOP VRCV HO OHC TFV ISSC ASR RTCM HAI ST CVT MPI SP ATC S/O f.0.w. IMC OX1 CCL HERMES AMI MIL CL MPFI DT&E CCD FPA HB/L f.i.o.s. PM D/R SCR NB BIMCO MCS FAS UHVI f.i.w. SUV VASI TAP SSS M/F TVO AFR EBD SLS AC SA C.I.F.E. APC RC VICS TCLU HPF B/N S/P c/- 1PPM