• Sand is an important constituent ( or component , or component part , or ingredient ) of any block mix.
• Gamma globulins are normal constituents of the circulating blood proteins.
• Sand is an important constituent ( or component , or component part , or ingredient ) of any block mix.
• Gamma globulins are normal constituents of the circulating blood proteins.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012