charcoal iron

基本解释

Steel made by the mixture of molten wrought iron, charcoal, and other substances in a crucible.
熟铁、木炭和其他物质在中熔化后形成的混合物制成的钢。
The forest was being cut for charcoal to heat forges working iron from Adirondack mines, for hemlock bark used in local tanneries, and for sawlogs milled downstream.
森林被砍伐，做成木炭当阿迪朗达克矿山炼铁的燃料，铁杉的树皮供给当地制革厂，可据木被运往下游地区。
It amazed me that they always looked impeccable in their uniforms with white shirts which had been washed by hand, dried on the bushes and then ironed with an iron filled with charcoal.
我感到不可思议的是，他们穿的校服和白衬衫看上去总是很体面。这些衣服都是手洗的，在灌木丛上晾干，然后用装着木炭的熨斗熨烫过的。

According to a recent Greenpeace study, illegal wood charcoal is primarily used in Brazil to power smelters producing pig iron, which is used to make steel for industries including U.S. auto manufacturing.
FORBES: Green Accounting: A Greener Bottom Line?