摘要: In these two lectures we will study regions of the nuclear equation state (EOS): energy and density region which is reachable in intermediate heavy ion collisions up to a few GeV/nucl. energy, some aspects Quark — Gluon Plasma (QGP) phase transition. pay particular attention compressibility matter liquid gas Some basic facts about multifragmentation also be mentioned. Since formation signatures QGP are discussed Bernd Muller at this summer school [Mu88], discuss features transition only from EOS view point, sensitivity compressibility. We concentrate on connections between experimental data rather than theoretical derivation framework model.