星际通信的实际问题不在于技术.The real problem of interstellar communication does not concern technology.事实上, 危及他们通信的机会是很少的.In fact, the chances of compromising their communications were slim.作一次星际通信的认真尝试可能很费钱.A serious attempt at inte...
We usually don't care whether a rock is classified as a granodiorte or diorite or tonalite.我们通常并不注意某种岩石是属于花岗闪光岩或闪长岩还是英云闪长岩.Gold sources are related to the activity of quartz diorite.金的成矿物质来源与石英闪长岩有关.Generally, the i...