• This primary cause of pollution is augmented by the pollution that is produced by ...
• To the test material in aqueous solution is added a solution of ... ( or A solution of ... is added to ... ) .
• This primary cause of pollution is augmented by the pollution that is produced by ...
• To the test material in aqueous solution is added a solution of ... ( or A solution of ... is added to ... ) .
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012