• The alignment of the magnets is complicated by thermal contraction.
• The expression ... becomes more involved ( or complicated ) because ...
• The alignment of the magnets is complicated by thermal contraction.
• The expression ... becomes more involved ( or complicated ) because ...
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012