Complex sentence: Pin 5 (control voltage) is connected to ground via a small-value capacitor (usually 0.01 to 0.1 μF); pin 7 (discharge) is left floating.
Split into simpler sentences: Pin 5 (control voltage) is connected to ground via a small-value capacitor (usually 0.01 to 0.1 μF). Pin 7 (discharge) is left floating.