Complex sentence: Therefore, meteorologists use hectopascals (hPa) today worldwide for air pressure, which are equivalent to millibars, while similar pressures are given in kilopascals in practically all other fields, where the hecto prefix is hardly ever used.
Split into simpler sentences: Therefore, meteorologists use hectopascals (hPa) today worldwide for air pressure, which are equivalent to millibars. Similar pressures are given in kilopascals in practically all other fields where the hecto prefix is hardly ever used.