请英文能力者翻译一下。 When the device is in a normal state，if the pressure level in the tank drops，control cabinets start fill pumps to the tank fill water up to the set value if the system pressure drops below a set value，control cabinet starts to fill the tanks of air compressor gas to air-water equilibrium.After receiving the fire signal，control cabinet control low pressure solenoid valve on the bottle to start，low pressure gas-driven high pressure bottle bottle bottle combination valve is opened，high pressure gas through pressure relief devices relief backward into the pressure tank to the gas appliance water goes into fire-fighting water system.After completely goes against the effective volume of water，low liquid level switch control air solenoid valves，cut off the connection of equipment and fire-fighting water system to prevent gas entering the system
消防气压罐属于增值税哪个税收分类？变频控制柜属于增值税哪个分类？ 你要编码还是什么？
稳压泵与气压罐的工作原理是什么呢？希望老师说的通俗易懂！谢谢1 消防2113稳压泵(气压)罐的工作原理1、消防气5261压罐的消防水4102总容积分为3个部分，即消1653防贮水容积(调节容积)、缓冲水容积和稳压水容积。2、系统平时的压力由稳压泵提供，当压力升高，达到稳压水容积的高水位时，稳压泵自动停止运行；当压力降低，达到稳压水容积的低水位时，稳压泵自动开启，将稳压水容积提升到最高水位。如此循环以保持系统的高压状态。3、当发生火灾时，随着消火栓的投入使用，系统压力开始下降，当降至消防贮水容积的最低水位时，停止稳压泵，自动开启消防泵灭火。
