This turns uranium ore into UF6, the essential preliminary step before enrichment.
His battles came over the European Communities bill, the essential preliminary to accession, approved at second reading on 17 February 1972 by a majority of just eight.
Some antibiotics, such as the sulfonamides, are competitive inhibitors of the synthesis of folic acid (folate), which is an essential preliminary step in the synthesis of nucleic acids.
In the 1850s forty-eighters led the struggle for the union of Moldavia and Walachia, which they regarded as an essential preliminary to independence.
Once regarded as scientific toys, such studies are now considered an essential preliminary step to any large-scale redevelopment of a port or coastal area and are useful even for minor modifications or additions.
There were those in Manchester, at a time when local or regional newspaper experience was usually regarded as an essential preliminary for work on a national or regional paper – as it had been for Simon's subsequent editor, Peter Preston – who were sceptical about graduate entrants.
