每一个建筑职工对于混凝土大概都很熟悉吧,但是你决不会想到,它有朝一日会在宇宙开发中占有一席位置。现在,已有一些混凝土权威根据理论和实验预测,到下一个世纪,混凝土将在某种程度上代替昂贵的稀有金属,成为开发地球外围空间的重要材料。那么,混凝土在宇宙空间是怎样 Every construction worker is probably familiar with concrete, but you never think that it will one day occupy a place in the development of the universe. Now, according to theoretical and experimental predictions, some concrete authorities have predicted that by the next century, concrete will replace expensive rare metals to some extent and become an important material for the development of the Earth’s outer space. So, what is concrete in space?