I went back to Beijing in November vis Antwerpen.
I went to Antwerpen train station to get my train ticket. I printed out the e-ticket and show that to them, then they did something in their system( I do not know what) and gave me my train ticket.
I took the train to Schiphol. At schiphol I got my boarding pass with the automaat without anybody check my train ticket.
That was my experience. Just share