1 Subjects: “...water reservoir...”

2 Subjects: “...underground reservoir...”

3 Subjects: “...thermal reservoir...”

4 Subjects: “...reservoir...”

5 Subjects: “...Shihmen Reservoir watershed...”

6 Subjects: “...reservoir region...”

7 Subjects: “...hydropower reservoir...”

8 Subjects: “...the Three Gorges Reservoir...”

9 Subjects: “...reservoirs...”

10 Subjects: “...Three Gorges Reservoir area...”