冶炼的英文：
(v) smelt metal

参考例句：

Why can't run-of-mine iron ore be directly put into blast furnace for extraction?
为什么生铁矿不能直接用于高炉冶炼?

Vessel for refining molten metal
转炉(冶炼金属的容器)

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。

In certain processes, pig iron is changed to steel in a converter.
铣铁在转化炉中经过一定过程而冶炼成钢。

The iron we know is not quite pure- it contains a certain amount of carbon picked up during smelting.
我们所知道的铁都不是纯铁——都含有一定量的在冶炼过程中吸收的碳。

Raw ore cannot be used directly in blast furnace. It must be prepared beforehand.
原矿是不能直接用于高炉冶炼的，必须事先对之加工处理。

This chemical reaction is called reduction. The smelting of iron is a reduction of iron oxide to metallic iron.
这种化学反应叫作还原。铁的冶炼就是把氧化铁还原成金属铁。

Briefly speaking, the other major raw materials for blast furnace smelting include fuels, fluxes and air.
简单地讲．用于高炉冶炼的原料除了铁矿石外，还有燃料、熔剂和空气。

New uses have been found for old metals, and new alloys have been made to satisfy new demands.
老的金属有了新用途，新的合金被冶炼出来，以满足新的需要。

I have the impression that blast furnace smelting uses coke. It must be used as fuel.
我有一个印象．高炉冶炼要用焦炭。这一定是用作燃料的吧?

smelt是什么意思：
vbl.
1.[ smell ]的过去式及过去分词
v.[T]
1.熔炼，提炼（矿石）
n.
1.银白鱼；胡瓜鱼

smelt in tomato sauce
茄汁胡瓜鱼

His offer smelt of a clear trap.
他的提议明显是一个圈套。

common smelt of eastern North America and Alaska.
北美洲东部和阿拉斯加州出产的普通胡瓜鱼。

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。

The still air smelt faintly of furniture polish.
凝滞的空气中隐隐有股家具上光剂的味道。

metal是什么意思：
n. 金属；金属制品；气质，勇气；重金属摇滚乐
adj. 金属制的

A hammer has a metal head and a wooden or metal handle.
锤子有个金属的头，一个木质的或金属的把柄。

Metals contract in cold weather.
金属在寒冷的天气里收缩。

The lye will eat through the metal.
碱液会腐蚀金属。

railroad tie of metal
铁路金属枕木

The metal buckled in the great heat.
这金属在高温下变形了。