“相当于”的英语可以翻译为：[经] amount to ...

每天相当于两大汤匙多重不饱和油的量就足够了。The equivalent of two tablespoons of polyunsaturated oils is ample each day.那大约相当于目前国际石油市场价格的一半。That's about half the going price on world oil markets.他们一直在实行相当于暴政的统治。They have been exercising ...