OHC缩写的意思

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