back flashover back-pressure set back-scatter density meter backward burning backward combustion backwater back water bailer balanced state of a polyphase network balance meter balancing bus balancing of a distribution network ballast coal bank bar bare hand method barn barrel barrels per calendar day barrels per stream day barrel washer bar screen base base load base load consumption base-load power station base load set basic flowsheet Basic Safety Standards for Radiation Protection basket centrifuge battery charger battery charging unit bay beam beam hole beam radiation beam reactor beam solar radiation becquerel bed bed bel bell socket beta back-scatter thickness meter beta decay beta disintegration beta emitter beta particle beta radiation beta ray emitter bin-and-feeder system boiler binding energy biological shield

biological shielding biomass biomass energy biomedical irradiation reactor biomedical reactor bipolar DC link bipolar d.c. link bipropellant bird cage bituminous coal bituminous shale blackbody black body blackdamp black damp black oil black product black tide blade blanket blast furnace gas blending block tariff blowing blowing of a well blowout blow-out preventer blowout preventer blow-out preventer stack blowout preventer stack board and pillar mining body burden boiler boiling water reactor bond bone bone coal borehole bore hole boring bottled gas bottom hole assembly bottomhole assembly bottom outlet bottom sediments Bradford breaker branch line breakage breakage screen breakdown breaking breathing of containers breeder

breeder assembly breeder element breeder element assembly breeder reactor breeding bremsstrahlung briquette British thermal unit brown coal brown coal dust brown gasoline buffer zone built-in reactivity burial ground buried cable burnable poison burner burner burner reactor burning point burning test burnout point burnup burn-up burn-up fraction burnup fraction bus admittance matrix busbar busbar busbar fault busbars busbar section busbar section disconnector bus coupler circuit-breaker bus impedance matrix butane