One kind contains the liver moss grain shape, arborization inclusions of agate.一类包含苔粒形, 树枝状玛瑙包裹.The way to influence the concrete strength is floc and arborization formed in concrete.影响混凝土强度的方式是在混凝土中形成絮状集合体和树枝状细脉....
The southeast is the most densely populated area.东南部是人口最稠密的地区。Austria lies to the southeast of Germany.奥地利位于德国东南。They expect the antibiotic products to be exported to Southeast Asia and Africa...他们希望向东南亚和非洲出口抗生素产品。There ...
生命起源的确切详情仍是个谜。The precise details of the origins of life remain hidden.关于生命起源的学说有很多.There are many theories about the origin of life.生命是怎样起源的?How did life begin?...