有资深军迷说f35只用五两稀土就可制造，真是长见识了 星辰大海5412021-01-29 23:05:14

Each F-35 aircraft - considered one of the world's most sophisticated, manoeuvrable and stealthy fighter jets - requires approximately 417kg of rare earth materials, according to a 2013 report from the US Congressional Research Service. It is the Pentagon's most expensive weapons system and the first fighter designed to serve three branches of the US military.