B/N缩写的意思

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