Русско-английский научно-технический словарь
являться
см. тж. если он является; представлять собой
• 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.