单词 铝带 例句 DEFINITIVE EXAMPLES 权威例句〔sial〕Rock rich in silicon and aluminum forming the upper layer of the earth's crust beneath all continental landmasses.硅铝带,硅铝层:由富含硅和铝的岩石组成的所有大陆块下面的最外层地壳美国传统 英语例句辞典...