Complex sentence: At the critical point, (304.1 K and 7.38 MPa (73.8 bar)), there is no difference in density, and the 2 phases become one fluid phase.
Split into simpler sentences: At the critical point, (304.1 K and 7.38 MPa (73.8 bar)). There is no difference in density, and the 2 phases become one fluid phase.