Complex sentence: The main battle tank's protection from high-explosive anti-tank (HEAT) projectiles and missiles was increased by new "Erawa" dynamic armor developed by the Poland Military-Technical Institute which consists of 394 tiles with explosives, detonating in case of a direct hit.
Split into simpler sentences: The main battle tank's protection from high-explosive anti-tank (HEAT) projectiles and missiles is increased by the new "Erawa" dynamic armor developed by the Poland Military-Technical Institute. This protection consists of 394 tiles with explosives, detonating in case of a direct hit.