sec缩写的意思

eo Lab q.v. APC PP DEV BDL CP dz LIM ESL gym Bk. GPH d/w PA VLP CBF EO prev LPH s.c. MSG Snafu bldg. QFII WMP NomCom ac P/T XS MIL B.J.P.I.S ID BBQ USG fxd A/W AISI acc.cop. IAC IB P. N/U vac DS TM CBL RM WTS MW ACG PZG o/a UL TAM W.C. PF bend n.e.