This date is some 1,500 years before the invention of smelting.

日期是在发明融化金属技术之前1500年。

You can imagine, the Industrial Revolution, lead smelting, and all that kind of thing.

你可以想象，工业革命，铅冶炼，以及所有类似的事情。

Smelting uses a lot of energy and, depending on the type of battery, can release harmful by-products.

冶炼过程消耗大量能源，并且根据电池的类型，可能会释放有害的副产物。

But using commodity money means you have to make commodity money, which is solved by production technologies–like smelting.

但是使用商品货币意味着你必须制造商品货币，它是通过冶炼等生产技术来解决的。

The heart of most battery recycling is a process called smelting, which is basically just melting the metallic parts.

大多数电池回收的核心是一个叫做熔炼的过程，也就是将金属部分熔化。

Since the fateful smelting, economic output and greenhouse-gas emissions have risen in tandem.

自致命的冶炼以来，经济产出和温室气体排放量同步上升。

I mean, the earliest record of iron smelting is within sub-Saharan Africa.

我的意思是，最早的铁冶炼记录是在撒哈拉以南非洲地区。

So we're not going all the way back to the mine through smelting, transportation, processing.

所以我们不会通过冶炼、运输、加工一路回到矿山。

For adults, heavy exposure can come from working in battery recycling, smelting or painting. It can affect adults’kidneys and blood pressure.

对于成年人来说， 大量接触可能来自电池回收、冶炼或油漆工作。 它会影响成年人的肾脏和血压。

These substances are got rid of by first roasting the ore in a furnace, and then smelting or melting it in a much hotter furnace.

首先将矿石在熔炉中进行加热，然后再将其放入到温度更高的熔炉之中进行融化。

But before the short-seller's assault, the bid for the mine was widely regarded as part of a larger plan to enter aluminium smelting, steelmaking and other bits of heavy industry.

但在卖空者发起攻击之前，对该矿的出价被广泛视为进入铝冶炼、炼钢和其他重工业领域的更大计划的一部分。

A smelting furnace turned iron ore from the near-by mountain into lumps of pure iron all ready for the farm's blacksmith to hammer and beat into horseshoes, pincers, tongs, crowbars, hammers, and other tools needed on the farm.

一座熔炉把附近山上的铁矿石变成了一块块纯铁，农场里的铁匠可以把它们锤成马蹄铁、钳子、钳子、撬棍、锤子和农场里需要的其他工具。

The smelting of iron began at New London and New Haven about 1658; in Litchfield county, Connecticut, a few years later;at Great Barrington, Massachusetts, in 1731; and near by at Lenox some thirty years after that.

大约 1658 年， 新伦敦和纽黑文开始冶炼铁；几年后在康涅狄格州利奇菲尔德县； 1731 年在马萨诸塞州大巴灵顿；大约三十年后， 在莱诺克斯附近。