с тех пор
• It has since become clear that such outflows are common.
• Since then (or Since that time [or Ever since (then)] ...
• Over the years the industry has improved this process considerably.
Русско-английский научно-технический словарь• It has since become clear that such outflows are common.
• Since then (or Since that time [or Ever since (then)] ...
• Over the years the industry has improved this process considerably.
Русско-английский научно-технический словарь