The content originally appeared on: CNN A version of this story appeared in CNN's Meanwhile in China newsletter, a three-times-a-week update exploring what you need to know about the country's rise and how it impacts the world. Sign up here. Hong Kong (CNN)For decades the Amur River has separated modern China and Russia - its waters cutting though more than 1,000 of their roughly 2,500 border miles. But it's always lacked one thing: a vehicle bridge. Now - as Russia's […]