OBTW缩写的意思

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