If you by "two segments" mean two expressions displayed with two bars, then that is not possible. Gauges only support a single expression. Segments in gauges usually mean the red/yellow/green portions of the gauge.
To display something like this, create two gauges, trim down the 'decoration' as much as possible. Line them up and add a background behind them - for example a text box on a lower layer - to visually 'combine' them. If you need a scale, put it on one of the two bars so that it appears above or below the pair of bars.
Logic will get you from a to b. Imagination will take you everywhere. - A Einstein