describe metrics formula with cavets description
xv_207_scfm, xv_208_scfm (ARS19004, ARS20009)It computes XV_207 and XV_208 flow paths downstream of FCV_207.
xv_207_scfm = fcv_207_scfm if XV207OUT = 1 and XV208OUT = 0xv_208_scfm = fcv_207_scfm if XV208OUT = 1 and XV207OUT = 0