см. тж. на равных основаниях; не иметь себе равного; одинаковый; при равных прочих условиях

The power level equals (or is equal to) the heat loss.

The power in the radiation field is the difference between ...

The electronegativity difference between chlorine and hydrogen is as great as that between nitrogen and hydrogen.

Источник: Русско-английский научно-технический словарь на Gufo.me