Определение fr в Английский Язык Английский Язык словарь
Fr is a written abbreviation for Father when it is used in titles before the name of a Catholic priest. France (in Internet addresses). The symbol for the element francium
Federal Register; Daily government publication which details the actions of agencies including FDA Proposals of new regulations, notices of final regulation changes, notices of advisory committee meetings, new approvals, and other FDA actions can be found in the Federal Register
the differential rotation speed of the bearing inner and outer races -the shaft rotation frequency