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Metallurgy may be technically defined as the science of extracting metals from their ores, refining them and preparing them for use.

从技术上说，可以把冶金学定义为一门从矿石中提炼金属，予以精炼，然后制成材料备用的科学。

separate (a metal) from an ore.

从矿石中提炼出（金属）。

Notice that in metallurgy" to extract" means to take the pure metal out of its ores.

要注意在冶金方面“提取指的是从矿石中提炼纯金属”。

The treatment of metal or the separation of metal from ores and ore concentrates by liquid processes, such as leaching, extraction, and precipitation.

水冶金术通过液体过程，象过滤，提炼，沉淀等方法处理金属，从矿石中或矿石浓缩物中分离出金属

They refined the gold out of the ore.

他们从矿石中提炼出金子。

Later, he found that fine(together with charcoal)could be used to extract certain metals from ores.

后来，人们发现，用火（加上炭）可从矿石中提炼某些金属。

The science that deals with procedures used in extracting metals from their ores, purifying and alloying metals, and creating useful objects from metals.

冶金术研究从金属矿中提炼金属、提纯与合成金属，以及用金属制造有用物质过程的技术

Aluminium is a metal which is produced from bauxite.

铝是一种从铝土矿提炼出的金属。

abstract metal from ore

从矿砂中提取金属.

Another application of biodegradation enhancement is the recovery of metals from ores and mining tailings with metal levels too low for smelting.

促进生物降解的另一个应用是从矿石或金属含量很低的不能熔炼的矿渣中回收金属。

Iron is extracted from the ore by smelting in the blast furnace.

铁是通过高炉冶炼从矿石中提取的。

They successfully abstracted gold of high quality from low-grade ore

他们成功地从低品位的矿石中提炼出高质量的黄金。

A miner extracts gold from the earth.

矿工从泥土里提炼黄金。

Gold extraction from ground whole-of-ore by agitated leach ranged from97% up to99% depending on grind size and cyanide concentration.

通过范围从97%99%搅动沥滤，地面所有矿石中的黄金提炼取决于磨矿粒度和氰化物浓度。

Hydrometallurgy: Extraction of metal from ore by dissolving the metal (as one of its salts) and then recovering it from the solution.

湿法冶金学:将矿石中的金属溶解(例如用它的一种盐),再从溶液中回收金属的提取方法。

Metal Tungsten & Cobalt Recycled from Disused Anvil by Niter Casting;

硝石熔炼法从废顶锤中回收金属钨和钴

Flotation Research on Recovery of Stannum from Tailing of Cassiterite-polymetallic Sulfide Ore

从锡石-多金属硫化矿尾矿中回收锡的浮选研究

To extract from a mine or from mined ore.

开采从矿或矿石中提取