• We are interested in a response where r and l act singly or together .
• The three basic techniques may be used singly or in combination .
• We are interested in a response where r and l act singly or together .
• The three basic techniques may be used singly or in combination .
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012