оказывать заметное действие на
• Trace contaminants on the base metals may have a pronounced (or marked, or appreciable, or perceptible) effect on results.
Источник:
Русско-английский научно-технический словарь
на Gufo.me
• Trace contaminants on the base metals may have a pronounced (or marked, or appreciable, or perceptible) effect on results.