1 Subjects: “...United States...”

2 Subjects: “...United Nations Framework Classification for Resources (UNFC)...”

3 Subjects: “...United Arab Emirates...”

4 Subjects: “...United Kingdom policy...”

5 Subjects: “...integrated MD units...”

6 Subjects: “...single room ventilation unit...”

7 Subjects: “...unitized regenerative fuel cell...”

8 Subjects: “...unit energy consumption...”

9 Subjects: “...phasor measurement units (PMUs)...”

10 Subjects: “...United Kingdom...”

11 Subjects: “...human settlement unit...”

12 Subjects: “...phytogeographical units...”

13 Subjects: “...gate recurrent unit network...”

14 Subjects: “...concrete masonry unit...”

15 Subjects: “...unitized facade...”

16 Subjects: “...cleavage unit...”

17 Subjects: “...maximum dry unit weight...”

18 Subjects: “...United States...”

19 Subjects: “...asymmetric machine-tractor unit...”