• As years went by , such deposits would thicken.
• The percentage of photographic discoveries has steadily increased over the years .
• As years went by , such deposits would thicken.
• The percentage of photographic discoveries has steadily increased over the years .
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012