BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 58 30.2%
2 United States 43 22.4%
3 Germany 36 18.8%
4 Netherlands 19 9.9%
5 France 13 6.8%
6 Japan 6 3.1%
7 India 4 2.1%
8 Brazil 2 1%
9 Korea, Republic of 2 1%
10 Viet Nam 2 1%
11 Romania 1 0.5%
12 Spain 1 0.5%
13 Sweden 1 0.5%
14 Canada 1 0.5%
15 Czech Republic 1 0.5%
16 Finland 1 0.5%
17 Hong Kong 1 0.5%