![](http://images.china.cn/attachement/jpg/site1007/20080526/0019b91ec84509a4adb508.jpg)
Professionals and materials are airdropped for operations to blow a barrier lake at Tangjiashan, Beichuan County, which was formed by landslides after the May 12 earthquake and now blocks the river Jianhe.
![](http://images.china.cn/attachement/jpg/site1007/20080526/0019b91ec84509a4adbb09.jpg)
Professionals and materials are airdropped for operations to blow a barrier lake at Tangjiashan, Beichuan County, which was formed by landslides after the May 12 earthquake and now blocks the river Jianhe.