hygf_power_station_engineering_info.real_scale as realScale
FROM
hygf_work_order_power_station
LEFT JOIN hygf_peasant_household ON hygf_work_order_power_station.peasant_household_id = hygf_peasant_household.sequence_nbr
WHERE
LEFT JOIN hygf_power_station_engineering_info on hygf_power_station_engineering_info.work_order_power_station_id=hygf_work_order_power_station.sequence_nbr
LEFT JOIN hygf_commercial on hygf_commercial.survey_information_id =hygf_peasant_household.survey_information_id