• The energy content of one quantum of a particular radiation is in direct proportion ( or directly proportional ) to its frequency.
• The frequency of mutations induced by X-rays is almost directly proportional to the dosage of radiation.
• The energy content of one quantum of a particular radiation is in direct proportion ( or directly proportional ) to its frequency.
• The frequency of mutations induced by X-rays is almost directly proportional to the dosage of radiation.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012