According to the way the energy of the exhaust gases is utilized， pressure-charging can be divided into two main systems， namely， the constant-pressure system and （）.
举一反三
- In the （） pressure charging system the pulse of energy that occur as the exhaust is released from the cylinder to improve the output of the turbocharger.
- Turbocharging system may be designed to operate on either the （） or the constant pressure exhaust system.
- In a constant pressure process for a closed system, the internal energy change of the system is equal to the sum of the heat exchanged and the work.
- The pressure-reducing circuit can change the pressure of the main system。
- The pressure-reducing circuit can change the pressure of the main system。 A: 正确 B: 错误