单语范例（未经PONS编辑处理）
Early sonobuoys had limited range, limited battery life and were overwhelmed by the noise of the ocean.
en.wikipedia.org The coupling transformer, battery, and ringer were in a separate enclosure from the desk set.
en.wikipedia.org However, most farm families who had electricity generated it themselves using battery systems charged by wind turbines or gasoline- or diesel-powered generators.
en.wikipedia.org It uses a 12-volt battery to operate the motor and the rate of rotation can be varied from 1 to 144 seconds per revolution.
en.wikipedia.org Passive air recirculation is used during the driving cycle to equalize variations in battery temperature.
en.wikipedia.org