Farm machines work at a field in Linzi district of Zibo city, East China's Shandong province, June 8, 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 transfers wheat to a tricycle 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]

Farmers prepare to store freshly-harvested wheat 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]