Chap.1 Absolute pressure/Gage pressure/vacuum pressure 国 Zero th law of thermodynamics State Equilibrium/quasi-equilibrium uniform steady 国 Process,path,cycle 上游充通大粤 May15,2018 3 SHANGHAI BAO TONG LINIERSITYMay 15, 2018 3 Chap. 1 Absolute pressure/ Gage pressure/vacuum pressure Zero th law of thermodynamics State Equilibrium/quasi‐equilibrium | uniform | steady Process, path, cycle