管道压力降计算表1

参数输入数据:项目单位GGGGGGFG-ngFGFG-ngPGPG-ngFG-CH4FGFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGFGPGPGPGPGPGPGPGPGPGPGPGPG