Definīcija:water in which the hydrogen is replaced by 'heavy hydrogen' or deuterium. Because of the very low neutron absorption cross-section of deuterium, heavy water makes an excellent moderator and is used in, e.g., CANDU and SGHWR nuclear reactors.It is present in ordinary water at one part in about 5000
VVC izstrādātie ķīmijas un ķīmiskās tehnoloģijas termini