Topic
G1-922
1,315
Geography (General)
1,315
431.67
189
660
74
800
50
450
23
400
17
380
14
663
14
200
13
452
13
900
13
069
12
290
12
syowa station
11
450.12
8
650
8
antarctica
7
meteorology
7
オホーツク海
7
スケトウダラ
7
370
6
Engineering machinery
6
Hokkaido
6
Mechanical engineering and machinery
6
TA213-215
6
TJ1-1570
6
and implements
6
planktonic foraminifera
6
tools
6
コリャーク語
6
480
5
Ice core
5
Iceland
5
Materials of engineering and construction. Mechanics of materials
5
Mining engineering. Metallurgy
5
Sakhalin
5
TA401-492
5
TN1-997
5
wintering
5
アイスコア
5
アイスランド
5
気候変動
5
海氷
5
300
4
468
4
487
4
664
4
829
4
Climate change
4
more ...