1 Subjects: “...harvester, efficient harvesting, harvester chassis, intelligent agricultural equipment, smart...”

2 Subjects: “...water use efficiency...”

3 Subjects: “...efficiency...”

4 Subjects: “...energy efficiency improvement...”

5 Subjects: “...efficiency...”

6 Subjects: “...power conversion efficiency (PCE)...”

7 Subjects: “...nitrogen use efficiency...”

8 Subjects: “...land use efficiency...”

9 Subjects: “...zinc efficiency...”

10 Subjects: “...nitrogen use efficiency...”

11 Subjects: “...oil efficiency...”

12 Subjects: “...nitrogen use efficiency...”

13 Subjects: “...efficient power take-off...”

14 Subjects: “...efficient power take-off...”

15 Subjects: “...efficiency...”

16 Subjects: “...technical efficiency...”

17 Subjects: “...water use efficiency...”

18 Subjects: “...Chinese provincial input efficiency...”

19 Subjects: “...water use efficiency...”

20 Subjects: “...photosynthetic efficiency...”