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• The numbers 235 and 238 represent (or are) the mass numbers of the two isotopes of uranium.
• The electron makes a better probe of the structure of matter.
• The existence of a predicted isomerism provides (or furnishes, or offers) one of the most important confirmations of ...
• The shock wave method constitutes a useful addition to the present techniques.
Русско-английский научно-технический словарь