Zoo Installed Tunnel Zaj duab xis Tsev cog khoom

Qhov no yog ib qho zoo-ntsia tunnel zaj duab xis tsev xog paj, cov yeeb yaj kiab yog ncab heev, zoo li daim iav. Lub kaw lus hydroponic tau nruab rau hauv, thiab cov kav dej hydroponic tau dai rau saum huab cua kom muab cov qoob loo noj.