{
  "quantities": {
    "treated_flow_tpd": {
      "value": 1500, "unit": "t/d", "decimals": 0,
      "unit_decimals": {"m³/h": 1},
      "aliases": ["设计处理水量", "处理水量", "设计水量", "小时流量"]
    },
    "cod_in_mgl": {"value": 400, "unit": "mg/L", "decimals": 0, "aliases": ["进水COD"]},
    "cod_out_mgl": {"value": 50, "unit": "mg/L", "decimals": 0, "aliases": ["出水COD"]},
    "cod_removal_pct": {
      "formula": "(cod_in_mgl - cod_out_mgl) / cod_in_mgl * 100",
      "unit": "%", "decimals": 1, "aliases": ["COD去除率"]
    },
    "hrt_h": {"value": 6, "unit": "h", "decimals": 1, "aliases": ["水力停留时间"]},
    "basin_count": {"value": 2, "unit": "座", "decimals": 0, "aliases": ["调节池座数"]},
    "pac_dose_mgl": {"value": 25, "unit": "mg/L", "decimals": 0, "aliases": ["PAC投加量"]},
    "pac_daily_kgd": {
      "formula": "treated_flow_tpd * pac_dose_mgl / 1000",
      "unit": "kg/d", "decimals": 1, "aliases": ["PAC日耗量"]
    },
    "power_kwh_per_t": {"value": 0.62, "unit": "kWh/t", "decimals": 2, "aliases": ["吨水电耗"]},
    "daily_power_kwhd": {
      "formula": "treated_flow_tpd * power_kwh_per_t",
      "unit": "kWh/d", "decimals": 0, "aliases": ["日耗电量"]
    },
    "pac_price_yuan_kg": {"value": 2.8, "unit": "元/kg", "decimals": 1, "aliases": ["PAC单价"]},
    "pac_annual_cost_wan": {
      "formula": "pac_daily_kgd * 365 * pac_price_yuan_kg / 10000",
      "unit": "万元", "decimals": 2, "unit_decimals": {"元": 0}, "aliases": ["PAC年药剂费"]
    },
    "equipment_cost_wan": {
      "value": 286.5, "unit": "万元", "decimals": 1, "unit_decimals": {"元": 0}, "aliases": ["设备费"]
    },
    "install_cost_wan": {"value": 42.3, "unit": "万元", "decimals": 1, "aliases": ["安装费"]},
    "total_quote_wan": {
      "formula": "equipment_cost_wan + install_cost_wan",
      "unit": "万元", "decimals": 1, "aliases": ["工程总报价", "总报价"]
    }
  },
  "exclusions": {
    "rules": ["dates", "standards", "ordinals", "leading_index", "headings", "table_columns"],
    "ignore_table_columns": ["序号", "编号"],
    "ignore_patterns": ["图\\s*\\d+(?:[-.]\\d+)?", "表\\s*\\d+(?:[-.]\\d+)?", "\\d+\\s*用\\s*\\d+\\s*备"]
  }
}