• Amber acquires an electric charge when rubbed with fur .
• If one substance is rubbed with ( or against ) another, ...
• Amber acquires an electric charge when rubbed with fur .
• If one substance is rubbed with ( or against ) another, ...
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012