The first Sino-Russian air emergency drill was held over the boundary Heihe River, Heilongjiang Province, Thursday, involving more than 50 vessels, as well as multifunctional helicopters and amphibious jet planes. [CNS Photo/Qiu Qilong]
The first Sino-Russian air emergency drill was held over the boundary Heihe River, Heilongjiang Province, Thursday, involving more than 50 vessels, as well as multifunctional helicopters and amphibious jet planes. [CNS Photo/Qiu Qilong]