mech缩写的意思

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