• The pump mechanism is entirely immersed ( or submerged ) in oil.
• The metal electrode dips ( or is dipped ) into a solution containing ions of the metal.
• The pump mechanism is entirely immersed ( or submerged ) in oil.
• The metal electrode dips ( or is dipped ) into a solution containing ions of the metal.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012