ob缩写的意思

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