矿 的中文句子和英文句子

这个煤矿因矿源枯竭而被关闭。

The mine was closed owing to exhaustion.


食物，粮食通常是源于植物和动物的物质，包含有人体营养物的必不可少物质或由其组成如：糖类、脂肪、蛋白质、维他命和矿物质等，由产生能量、促进发育和维持生命的组织消化和吸收

Material, usually of plant or animal origin, that contains or consists of essential body nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals, and is ingested and assimilated by an organism to produce energy, stimulate growth, and maintain life.


滚筒筛一种圆筒形的可旋转的筛，用于岩石和矿石的筛分或大小测量

A revolving cylindrical sieve used for screening or sizing rock and ore.


经过化学分析，我们知道了矿石的构成。

After chemical assay, we have known the composition of the ore.


煤是一种矿物。

Coal is a mineral.


约翰内斯堡南非最大的城市，位于该国的东北部，在德班西北。在其附近发现金矿后于1886年建立，为主要的工业中心。人口703，980

The largest city of South Africa, in the northeast part of the country northwest of Durban. Founded in1886 after the discovery of gold nearby, it is a major industrial center. Population, 703,980.


气成作用；气成通过从岩浆凝固中释放气体的作用下引起的岩石改变或矿物形成的过程

A process of rock alteration or mineral formation brought about by the action of gases emitted from solidifying magma.


在富矿山上挖洞穴

Excavate an ore-rich hillside.


矿灯固定在矿工的头盔上。

A miner's lamp is fixed onto his helmet.


寻找金矿是很困难的。

The quest for gold was difficult.