Aerospace is another industry that relies on frictionless trade with the rest of the continent .
航空航天工业是另一个依赖于同欧洲大陆进行无摩擦贸易的产业。
Now all four companies have merged into aerospace titan boeing .
如今这四家都被航空业巨擘波音合并掉了。
Rare earths have become increasingly important in manufacturing sophisticated products including flat-screen monitors , electric-car batteries , wind turbines and aerospace alloys .