485通信应用，中央空调集中控制系统，应用于商用制冷，家用制冷等行业。-485 Applications

空调计算的各种程序，包含保温，水力，冷水，冰水系统计算等等。是空调制冷必备软件-Air conditioning calculate various programs, including thermal, hydro, cold water, ice water systems computing. Air conditioning and refrigeration is an essential software

此文件为氦制冷循环的优化程序,为大型的低温制冷系统的优化所用-This file is a program for optimizing helium refrigeration cycle for optimizing large-scale cryogenic refrigeration system used