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## Function BOOST_UNITS_PHYSICAL_CONSTANT

boost::units::si::constants::codata::BOOST_UNITS_PHYSICAL_CONSTANT — CODATA recommended values of the fundamental physical constants: NIST SP 961.

## Synopsis

    // In header: <boost/units/systems/si/codata/deuteron_constants.hpp>

     BOOST_UNITS_PHYSICAL_CONSTANT(m_d, quantity< mass >,
                                   3.34358320e-27 * kilograms,
                                   1.7e-34 * kilograms);

## Description

deuteron mass