Next, we use a new hardening process developed by our metallurgists to strengthen a metal that is naturally very soft.

随后，再采用我们的冶金大师制定的全新强化工序，让这一本来十分柔软的金属变得更为坚固。

Assumed metallurgical recoveries and payabilities for all metals and discussion of the basis on which the assumed recoveries and payabilities are derived (metallurgical test work, detailed mineralogy, similar deposits, etc.).

• 设所有金属的冶金回收率和可付款率，并讨论得出定回收率和可付款率的基础（冶金测试工作、详细的矿物、类似的矿床等）。

Chromium's effect on iron and steel had been observed for decades, but it wasn't put to practical use until 1913, when a metallurgist named Harry Brearley was looking for ways to prevent corrosion in gun barrels.

铬对铁和钢的影响已经被观察了几十年，但直到 1913 年，一位名叫哈里·布里尔利的冶金家在寻找防止枪管腐蚀的法，才将其付诸实践。

However, the researchers estimate that, besides the green benefits accruing, the initial investment would be repaid in 22 months by the elimination of expensive metallurgical coke from the process, and from selling any oxygen that was surplus to requirements.

然而，研究人员估计，除了产生的绿色效益外，初始投资将在 22 个月内通过从工艺消除昂贵的冶金焦炭以及出售任何多余的氧气来收回。

The metallurgical skills, inks, and presses of 1700 B.C.Crete were more primitive than those of A.D.1455 Germany, so the disk had to be punched by hand rather than by cast movable type locked into a metal frame, inked, and pressed.

公元前 1700 年克里特岛的冶金技术、墨水和印刷机比公元 1455 年德国的冶金技术、墨水和印刷机更为原始，因此磁盘必须用手冲压，而不是通过锁定在金属框架的铸造活字印刷、上墨和压制。