BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 United States 16 33.3%
2 China 12 25%
3 Germany 10 20.8%
4 Netherlands 5 10.4%
5 Republic of Korea 1 2.1%
6 Russia 1 2.1%
7 Taiwan 1 2.1%
8 United Kingdom 1 2.1%
9 Korea, Republic of 1 2.1%