прогрев
• After switching on, allow five minutes for the instrument to warm up.
• After an initial warming-up period the instrument shows no drift for six hours.
Русско-английский научно-технический словарь• After switching on, allow five minutes for the instrument to warm up.
• After an initial warming-up period the instrument shows no drift for six hours.
Русско-английский научно-технический словарь