Track-laying of first China-Russia cross-river railway bridge completed(1/4)

Aerial photo shows the construction site of the first Chins-Russia cross-river railway bridge, Aug 17, 2021. Track-laying work of the first Chins-Russia cross-river railway bridge connecting Nizhneleninskoye in Russia with the border city of Tongjiang in China's Heilongjiang Province was completed on Tuesday, laying a solid foundation for the full operation of the bridge. (Photo provided to China News Service)

Aerial photo shows the construction site of the first Chins-Russia cross-river railway bridge, Aug 17, 2021. Track-laying work of the first Chins-Russia cross-river railway bridge connecting Nizhneleninskoye in Russia with the border city of Tongjiang in China's Heilongjiang Province was completed on Tuesday, laying a solid foundation for the full operation of the bridge. (Photo provided to China News Service)

Aerial photo shows the construction site of the first Chins-Russia cross-river railway bridge, Aug 17, 2021. Track-laying work of the first Chins-Russia cross-river railway bridge connecting Nizhneleninskoye in Russia with the border city of Tongjiang in China's Heilongjiang Province was completed on Tuesday, laying a solid foundation for the full operation of the bridge. (Photo provided to China News Service)

Aerial photo shows the construction site of the first Chins-Russia cross-river railway bridge, Aug 17, 2021. Track-laying work of the first Chins-Russia cross-river railway bridge connecting Nizhneleninskoye in Russia with the border city of Tongjiang in China's Heilongjiang Province was completed on Tuesday, laying a solid foundation for the full operation of the bridge. (Photo provided to China News Service)