But blast furnaces require a lot of coal, which means greenhouse gas pollution.

但高炉需要燃烧大量的煤炭，这意味着温室气体污染。

The heat of the coal melts the iron, and it sinks to the bottom of the furnace.

煤的热度会把铁熔化, 让熔化的铁水流到高炉底下。

Just 60% of steel blast-furnaces are now in use, down sharply since October and near a five-year low.

去年10月以来，钢厂高炉开工率大幅下滑，仅为60%，接近五年低点。

The temperature required to make an authentic Neapolitan pizza is stupidly, unbelievably hot-more blast furnace than broiler.

制作正宗的那不勒斯披萨所需的温度高得离谱，令人难以置信，它更像是炼钢高炉的温度，而非普通烤箱。

Red-hot molten metal pours forth from the bottom of towering blast furnaces.

炽热的熔化金属从高耸的高炉底部涌出。

It is next mixed with some more coal and with lime, and the whole is put into a tall furnace.

然后, 把铁矿跟更多的煤, 有青混在一块儿, 一起放进一座高炉里头。

At that speed, the surface of the airfoil is the temperature of molten steel 3,500 degrees Fahrenheit like a blast furnace.

在这个速度下，机翼表面温度是钢水的温度，华氏3,500度，就像一个高炉一样。

Replacing old blast furnaces with cleaner equipment is the easy part.

用更清洁的设备替换旧高炉是比较容易的部分。

Electricity powers blast furnaces, elevators, computers, and all manner of things in homes, businesses, and manufacturing.

电力为高炉、 电梯、 计算机以及家庭、企业和制造业中的各种事物提供动力。

No. You can buy iron ore anywhere and the ore from the Mesabi Mountains is like dust. It clogs the blast furnaces.

哪里买不到铁矿 偏要到梅萨比山脉那买 那里的铁矿就像垃圾 只会堵塞高炉。

That works by taking nitrogen emitted from the blast furnace and pumping it through the reaction chamber.

这是通过吸收高炉排放的氮气并将其泵送通过反应室来实现的。

The latter is a big provider of iron ore to China, where dozens of blast furnaces have been closed because of restrictions on movement.

力拓矿业集团是中国的大型铁矿供应商，中国有数十座高炉因为运输限制而关闭。

We had an announcement this week that U.S. Steel plans to restart one of two idle blast furnaces in Illinois and call back 500 workers.

周，美国钢铁公司宣布，他们计划重启伊利诺伊州两座闲置高炉中的其中一个，并招聘500名工人。

Henry Ford often sourced raw materials, like rubber for tyres and steel for chassis, from plantations and blast furnaces owned by his firm.

亨利福特经常从他公司拥有的种植园和高炉采购原材料，如轮胎橡胶和底盘钢材。

The modification Drs Ding and Kildahl propose (see diagram) cuts coke out of the loop by pumping CO directly into the blast furnace.

Ding 和 Kildahl 博士提出的修改方案（见图）通过将 CO 直接泵入高炉来减少循环中的焦炭。

Most of them, like Salzgitter's, involve ripping out old blast furnaces and replacing them with new ones to make " direct-reduced iron" using hydrogen.

他们中的大多数，就像 Salzgitter 的那样，涉及拆除旧高炉并用新高炉取而代之，以使用氢气制造“直接原铁”。

Within a few decades, the entire continent was laced together by iron train tracks, and it all started here with Abraham Darby's blast furnace.

几十年之内，整个大陆都被铁轨连接在一起，而这一切都始于亚伯拉罕达比的高炉。

The simplest option is to capture the carbon dioxide as it's generated from the chimney of a power station, or blast furnace, or refinery.

最简单的选择是捕获从发电站、高炉或炼油厂的烟囱中产生的二氧化碳。

Given more work, it might be possible for BCNF1 to replace all of the coke in a blast furnace, cutting emissions down close to zero, reckons Dr Ding.

丁博士认为， 如果做更多的工作， BCNF1 可能会取代高炉中的所有焦炭，从而将排放量减少到接近于零。

The facility relies on novel equipment made by LanzaTech, a biotech firm based in Illinois, which uses a biocatalyst to turn the carbon-rich waste gas from the blast furnaces into ethanol.

该工厂依靠位于伊利诺伊州的生物科技公司 LanzaTech 制造的新型设备，该设备使用生物催化剂将高炉产生的富含碳的废气转化为乙醇。