1 “...Ecological protection and high-quality development in the basin of the Yellow River, known as China...”

2 Subjects: “...flood protection...”

3 Subjects: “...flood protection...”

4 Subjects: “...coastal protection...”

5 Subjects: “...shore protection...”

6 Subjects: “...nature protection...”

7 Subjects: “...environmental protection...”

8 Subjects: “...protected species...”

9 Subjects: “...ecological protection policy...”

10 Subjects: “...ecological protection policy...”

11 Subjects: “...personal health protective behaviour...”

12 Subjects: “...scour protection damage...”

13 Subjects: “...historical buildings protection...”

14 Subjects: “...environmental protection background...”

15 Subjects: “...degree of protection...”

16 “..., namely: (i) patents, which protect inventions; (ii) plant variety rights, which protect the breeding...”

17 “..., air and water pollution. Effective environmental protection and governance are crucial, particularly...”

18 “..., and the global rise of temperature. Green computing technologies are crucial in protecting our universe from...”

19 “... workers struggle to find a vaccine to protect our health, we have had to live through situations hitherto...”

20 “..., and the necessary protection of the culture of destinations and the environment. Therefore, there is a need...”