Complex sentence: The de Havilland rubber-in-compression undercarriage legs could not absorb the rebound energies imposed by carrier landings; these were replaced by more conventional hydraulic oleos which embodied torque links.
Split into simpler sentences: The de Havilland rubber-in-compression undercarriage legs could not absorb the rebound energies imposed by carrier landings. They were replaced by more conventional hydraulic oleos which embodied torque links.