A reaper harvests wheat at a field in Linzi district of Zibo city, East China's Shandong province, June 6, 2018. The agricultural mechanization in Linzi district has been greatly improved in recent years to help local farmers do more efficiently in farm work. [Photo/Xinhua] 

A farmer looks over the mature situation of wheat at a field in Linzi district of Zibo city, East China's Shandong province, June 6, 2018. The agricultural mechanization in Linzi district has been greatly improved in recent years to help local farmers do more efficiently in farm work. [Photo/Xinhua] 

A reaper harvests wheat at a field in Linzi district of Zibo city, East China's Shandong province, June 6, 2018. The agricultural mechanization in Linzi district has been greatly improved in recent years to help local farmers do more efficiently in farm work. [Photo/Xinhua]