excess neutron flux shut down
excess neutron flux shut-down
neutron neutron reaction
neutron neutron scattering
Neutron-neutron discrimination
neutron-neutron logging
neutron-neutron re-action
neutron-neutron(n-n)logging
deuterium excess d-excess parameter
deuterium excess(d-excess) parameter
excess current or excess voltage
excess electron excess fraction
effective sub-critical neutron multiplication factor k s with external neutron source