| Knowledge transfer via multiple model local structure mapping Recent countries visiting this post |  |
 | 9 | United States |
 | 4 | |
 | 1 | China |
 | 1 | Germany |
| Knowledge transfer via multiple model local structure mapping Recent countries visiting this post | |
| 9 | United States |
| 4 | |
| 1 | China |
| 1 | Germany |