"We have to meet our obligations and just how we do this is subject to negotiation with Nasa, " said Mr Dordain.
BBC: Johannes Kepler freighter docks with space station
Mr Dordain also told BBC News that he expected Esa member states to put in place formal arrangements to support ISS exploitation to 2020 at the agency's March Council meeting.
应用推荐
模块上移
模块下移
不移动